cx23885: use pci_set_dma_mask insted of pci_dma_supported

Message ID 20151118150802.GA20457@lst.de (mailing list archive)
State Superseded, archived
Headers

Commit Message

Christoph Hellwig Nov. 18, 2015, 3:08 p.m. UTC
  Hi Tycho,

please try the patch below - Andrew should be sending it on to Linux soon.

---
From 4c03a9f77104b04af45833e0424954191ca94a12 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 11 Nov 2015 18:13:09 +0100
Subject: various: fix pci_set_dma_mask return value checking

pci_set_dma_mask returns a negative errno value, not a bool
like pci_dma_supported.  This of course was just a giant test
for attention :)

Reported-by: Jongman Heo <jongman.heo@samsung.com>
Tested-by: Jongman Heo <jongman.heo@samsung.com>	[pcnet32]
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/cx23885/cx23885-core.c           | 4 ++--
 drivers/media/pci/cx25821/cx25821-core.c           | 3 ++-
 drivers/media/pci/cx88/cx88-alsa.c                 | 4 ++--
 drivers/media/pci/cx88/cx88-mpeg.c                 | 3 ++-
 drivers/media/pci/cx88/cx88-video.c                | 4 ++--
 drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
 drivers/media/pci/saa7134/saa7134-core.c           | 4 ++--
 drivers/media/pci/saa7164/saa7164-core.c           | 4 ++--
 drivers/media/pci/tw68/tw68-core.c                 | 4 ++--
 drivers/net/ethernet/amd/pcnet32.c                 | 5 +++--
 10 files changed, 20 insertions(+), 17 deletions(-)
  

Comments

Tycho Lürsen Nov. 18, 2015, 4:34 p.m. UTC | #1
Hi Christoph,
thanks, will do and report back shortly.

Op 18-11-15 om 16:08 schreef Christoph Hellwig:
> Hi Tycho,
>
> please try the patch below - Andrew should be sending it on to Linux soon.
>
> ---
>  From 4c03a9f77104b04af45833e0424954191ca94a12 Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <hch@lst.de>
> Date: Wed, 11 Nov 2015 18:13:09 +0100
> Subject: various: fix pci_set_dma_mask return value checking
>
> pci_set_dma_mask returns a negative errno value, not a bool
> like pci_dma_supported.  This of course was just a giant test
> for attention :)
>
> Reported-by: Jongman Heo <jongman.heo@samsung.com>
> Tested-by: Jongman Heo <jongman.heo@samsung.com>	[pcnet32]
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   drivers/media/pci/cx23885/cx23885-core.c           | 4 ++--
>   drivers/media/pci/cx25821/cx25821-core.c           | 3 ++-
>   drivers/media/pci/cx88/cx88-alsa.c                 | 4 ++--
>   drivers/media/pci/cx88/cx88-mpeg.c                 | 3 ++-
>   drivers/media/pci/cx88/cx88-video.c                | 4 ++--
>   drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
>   drivers/media/pci/saa7134/saa7134-core.c           | 4 ++--
>   drivers/media/pci/saa7164/saa7164-core.c           | 4 ++--
>   drivers/media/pci/tw68/tw68-core.c                 | 4 ++--
>   drivers/net/ethernet/amd/pcnet32.c                 | 5 +++--
>   10 files changed, 20 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
> index 35759a9..e8f8472 100644
> --- a/drivers/media/pci/cx23885/cx23885-core.c
> +++ b/drivers/media/pci/cx23885/cx23885-core.c
> @@ -1992,9 +1992,9 @@ static int cx23885_initdev(struct pci_dev *pci_dev,
>   		(unsigned long long)pci_resource_start(pci_dev, 0));
>   
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
> +	err = pci_set_dma_mask(pci_dev, 0xffffffff);
> +	if (err) {
>   		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
> -		err = -EIO;
>   		goto fail_context;
>   	}
>   
> diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
> index dbc695f..0042803 100644
> --- a/drivers/media/pci/cx25821/cx25821-core.c
> +++ b/drivers/media/pci/cx25821/cx25821-core.c
> @@ -1319,7 +1319,8 @@ static int cx25821_initdev(struct pci_dev *pci_dev,
>   		dev->pci_lat, (unsigned long long)dev->base_io_addr);
>   
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
> +	err = pci_set_dma_mask(pci_dev, 0xffffffff);
> +	if (err) {
>   		pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
>   		err = -EIO;
>   		goto fail_irq;
> diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
> index 0ed1b65..1b5268f 100644
> --- a/drivers/media/pci/cx88/cx88-alsa.c
> +++ b/drivers/media/pci/cx88/cx88-alsa.c
> @@ -890,9 +890,9 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
>   		return err;
>   	}
>   
> -	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
> +	err = pci_set_dma_mask(pci,DMA_BIT_MASK(32));
> +	if (err) {
>   		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
> -		err = -EIO;
>   		cx88_core_put(core, pci);
>   		return err;
>   	}
> diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
> index 9db7767..f34c229 100644
> --- a/drivers/media/pci/cx88/cx88-mpeg.c
> +++ b/drivers/media/pci/cx88/cx88-mpeg.c
> @@ -393,7 +393,8 @@ static int cx8802_init_common(struct cx8802_dev *dev)
>   	if (pci_enable_device(dev->pci))
>   		return -EIO;
>   	pci_set_master(dev->pci);
> -	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
> +	err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32));
> +	if (err) {
>   		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
>   		return -EIO;
>   	}
> diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
> index 0de1ad5..aef9acf 100644
> --- a/drivers/media/pci/cx88/cx88-video.c
> +++ b/drivers/media/pci/cx88/cx88-video.c
> @@ -1314,9 +1314,9 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
>   	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
>   
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
> +	err = pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32));
> +	if (err) {
>   		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
> -		err = -EIO;
>   		goto fail_core;
>   	}
>   	dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
> diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> index 60b2d46..3fdbd81 100644
> --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> @@ -810,7 +810,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev,
>   		"%s(): board vendor 0x%x, revision 0x%x\n",
>   		__func__, board_vendor, board_revision);
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
> +	if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
>   		dev_err(&pci_dev->dev,
>   			"%s(): 32bit PCI DMA is not supported\n", __func__);
>   		goto pci_detect_err;
> diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
> index e79d63e..f720cea 100644
> --- a/drivers/media/pci/saa7134/saa7134-core.c
> +++ b/drivers/media/pci/saa7134/saa7134-core.c
> @@ -951,9 +951,9 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
>   	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
>   	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
> +	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
> +	if (err) {
>   		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
> -		err = -EIO;
>   		goto fail1;
>   	}
>   
> diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
> index 8f36b48..8bbd092 100644
> --- a/drivers/media/pci/saa7164/saa7164-core.c
> +++ b/drivers/media/pci/saa7164/saa7164-core.c
> @@ -1264,9 +1264,9 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
>   
>   	pci_set_master(pci_dev);
>   	/* TODO */
> -	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
> +	err = pci_set_dma_mask(pci_dev, 0xffffffff);
> +	if (err) {
>   		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
> -		err = -EIO;
>   		goto fail_irq;
>   	}
>   
> diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
> index 8c5655d..4e77618 100644
> --- a/drivers/media/pci/tw68/tw68-core.c
> +++ b/drivers/media/pci/tw68/tw68-core.c
> @@ -257,9 +257,9 @@ static int tw68_initdev(struct pci_dev *pci_dev,
>   		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
>   		dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
>   	pci_set_master(pci_dev);
> -	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
> +	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
> +	if (err) {
>   		pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
> -		err = -EIO;
>   		goto fail1;
>   	}
>   
> diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
> index e2afabf..7ccebae 100644
> --- a/drivers/net/ethernet/amd/pcnet32.c
> +++ b/drivers/net/ethernet/amd/pcnet32.c
> @@ -1500,10 +1500,11 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
>   		return -ENODEV;
>   	}
>   
> -	if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
> +	err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK);
> +	if (err) {
>   		if (pcnet32_debug & NETIF_MSG_PROBE)
>   			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
> -		return -ENODEV;
> +		return err;
>   	}
>   	if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
>   		if (pcnet32_debug & NETIF_MSG_PROBE)

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Tycho Lürsen Nov. 18, 2015, 6:28 p.m. UTC | #2
Hi Christoph,
that additional patch fixed the problem indeed.
Thanks again.

Regards, Tycho

Op 18-11-15 om 17:34 schreef Tycho Lürsen:
> Hi Christoph,
> thanks, will do and report back shortly.
>
> Op 18-11-15 om 16:08 schreef Christoph Hellwig:
>> Hi Tycho,
>>
>> please try the patch below - Andrew should be sending it on to Linux 
>> soon.
>>
>> ---
>>  From 4c03a9f77104b04af45833e0424954191ca94a12 Mon Sep 17 00:00:00 2001
>> From: Christoph Hellwig <hch@lst.de>
>> Date: Wed, 11 Nov 2015 18:13:09 +0100
>> Subject: various: fix pci_set_dma_mask return value checking
>>
>> pci_set_dma_mask returns a negative errno value, not a bool
>> like pci_dma_supported.  This of course was just a giant test
>> for attention :)
>>
>> Reported-by: Jongman Heo <jongman.heo@samsung.com>
>> Tested-by: Jongman Heo <jongman.heo@samsung.com> [pcnet32]
>> Signed-off-by: Christoph Hellwig <hch@lst.de>
>> ---
>>   drivers/media/pci/cx23885/cx23885-core.c           | 4 ++--
>>   drivers/media/pci/cx25821/cx25821-core.c           | 3 ++-
>>   drivers/media/pci/cx88/cx88-alsa.c                 | 4 ++--
>>   drivers/media/pci/cx88/cx88-mpeg.c                 | 3 ++-
>>   drivers/media/pci/cx88/cx88-video.c                | 4 ++--
>>   drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
>>   drivers/media/pci/saa7134/saa7134-core.c           | 4 ++--
>>   drivers/media/pci/saa7164/saa7164-core.c           | 4 ++--
>>   drivers/media/pci/tw68/tw68-core.c                 | 4 ++--
>>   drivers/net/ethernet/amd/pcnet32.c                 | 5 +++--
>>   10 files changed, 20 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/media/pci/cx23885/cx23885-core.c 
>> b/drivers/media/pci/cx23885/cx23885-core.c
>> index 35759a9..e8f8472 100644
>> --- a/drivers/media/pci/cx23885/cx23885-core.c
>> +++ b/drivers/media/pci/cx23885/cx23885-core.c
>> @@ -1992,9 +1992,9 @@ static int cx23885_initdev(struct pci_dev 
>> *pci_dev,
>>           (unsigned long long)pci_resource_start(pci_dev, 0));
>>         pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
>> +    err = pci_set_dma_mask(pci_dev, 0xffffffff);
>> +    if (err) {
>>           printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
>> -        err = -EIO;
>>           goto fail_context;
>>       }
>>   diff --git a/drivers/media/pci/cx25821/cx25821-core.c 
>> b/drivers/media/pci/cx25821/cx25821-core.c
>> index dbc695f..0042803 100644
>> --- a/drivers/media/pci/cx25821/cx25821-core.c
>> +++ b/drivers/media/pci/cx25821/cx25821-core.c
>> @@ -1319,7 +1319,8 @@ static int cx25821_initdev(struct pci_dev 
>> *pci_dev,
>>           dev->pci_lat, (unsigned long long)dev->base_io_addr);
>>         pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
>> +    err = pci_set_dma_mask(pci_dev, 0xffffffff);
>> +    if (err) {
>>           pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
>>           err = -EIO;
>>           goto fail_irq;
>> diff --git a/drivers/media/pci/cx88/cx88-alsa.c 
>> b/drivers/media/pci/cx88/cx88-alsa.c
>> index 0ed1b65..1b5268f 100644
>> --- a/drivers/media/pci/cx88/cx88-alsa.c
>> +++ b/drivers/media/pci/cx88/cx88-alsa.c
>> @@ -890,9 +890,9 @@ static int snd_cx88_create(struct snd_card *card, 
>> struct pci_dev *pci,
>>           return err;
>>       }
>>   -    if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
>> +    err = pci_set_dma_mask(pci,DMA_BIT_MASK(32));
>> +    if (err) {
>>           dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
>> -        err = -EIO;
>>           cx88_core_put(core, pci);
>>           return err;
>>       }
>> diff --git a/drivers/media/pci/cx88/cx88-mpeg.c 
>> b/drivers/media/pci/cx88/cx88-mpeg.c
>> index 9db7767..f34c229 100644
>> --- a/drivers/media/pci/cx88/cx88-mpeg.c
>> +++ b/drivers/media/pci/cx88/cx88-mpeg.c
>> @@ -393,7 +393,8 @@ static int cx8802_init_common(struct cx8802_dev 
>> *dev)
>>       if (pci_enable_device(dev->pci))
>>           return -EIO;
>>       pci_set_master(dev->pci);
>> -    if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
>> +    err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32));
>> +    if (err) {
>>           printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
>>           return -EIO;
>>       }
>> diff --git a/drivers/media/pci/cx88/cx88-video.c 
>> b/drivers/media/pci/cx88/cx88-video.c
>> index 0de1ad5..aef9acf 100644
>> --- a/drivers/media/pci/cx88/cx88-video.c
>> +++ b/drivers/media/pci/cx88/cx88-video.c
>> @@ -1314,9 +1314,9 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
>>              dev->pci_lat,(unsigned long 
>> long)pci_resource_start(pci_dev,0));
>>         pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
>> +    err = pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32));
>> +    if (err) {
>>           printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
>> -        err = -EIO;
>>           goto fail_core;
>>       }
>>       dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
>> diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c 
>> b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
>> index 60b2d46..3fdbd81 100644
>> --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
>> +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
>> @@ -810,7 +810,7 @@ static int netup_unidvb_initdev(struct pci_dev 
>> *pci_dev,
>>           "%s(): board vendor 0x%x, revision 0x%x\n",
>>           __func__, board_vendor, board_revision);
>>       pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
>> +    if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
>>           dev_err(&pci_dev->dev,
>>               "%s(): 32bit PCI DMA is not supported\n", __func__);
>>           goto pci_detect_err;
>> diff --git a/drivers/media/pci/saa7134/saa7134-core.c 
>> b/drivers/media/pci/saa7134/saa7134-core.c
>> index e79d63e..f720cea 100644
>> --- a/drivers/media/pci/saa7134/saa7134-core.c
>> +++ b/drivers/media/pci/saa7134/saa7134-core.c
>> @@ -951,9 +951,9 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
>>              pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
>>              dev->pci_lat,(unsigned long 
>> long)pci_resource_start(pci_dev,0));
>>       pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
>> +    err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
>> +    if (err) {
>>           pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
>> -        err = -EIO;
>>           goto fail1;
>>       }
>>   diff --git a/drivers/media/pci/saa7164/saa7164-core.c 
>> b/drivers/media/pci/saa7164/saa7164-core.c
>> index 8f36b48..8bbd092 100644
>> --- a/drivers/media/pci/saa7164/saa7164-core.c
>> +++ b/drivers/media/pci/saa7164/saa7164-core.c
>> @@ -1264,9 +1264,9 @@ static int saa7164_initdev(struct pci_dev 
>> *pci_dev,
>>         pci_set_master(pci_dev);
>>       /* TODO */
>> -    if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
>> +    err = pci_set_dma_mask(pci_dev, 0xffffffff);
>> +    if (err) {
>>           printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
>> -        err = -EIO;
>>           goto fail_irq;
>>       }
>>   diff --git a/drivers/media/pci/tw68/tw68-core.c 
>> b/drivers/media/pci/tw68/tw68-core.c
>> index 8c5655d..4e77618 100644
>> --- a/drivers/media/pci/tw68/tw68-core.c
>> +++ b/drivers/media/pci/tw68/tw68-core.c
>> @@ -257,9 +257,9 @@ static int tw68_initdev(struct pci_dev *pci_dev,
>>           dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
>>           dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
>>       pci_set_master(pci_dev);
>> -    if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
>> +    err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
>> +    if (err) {
>>           pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
>> -        err = -EIO;
>>           goto fail1;
>>       }
>>   diff --git a/drivers/net/ethernet/amd/pcnet32.c 
>> b/drivers/net/ethernet/amd/pcnet32.c
>> index e2afabf..7ccebae 100644
>> --- a/drivers/net/ethernet/amd/pcnet32.c
>> +++ b/drivers/net/ethernet/amd/pcnet32.c
>> @@ -1500,10 +1500,11 @@ pcnet32_probe_pci(struct pci_dev *pdev, const 
>> struct pci_device_id *ent)
>>           return -ENODEV;
>>       }
>>   -    if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
>> +    err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK);
>> +    if (err) {
>>           if (pcnet32_debug & NETIF_MSG_PROBE)
>>               pr_err("architecture does not support 32bit PCI 
>> busmaster DMA\n");
>> -        return -ENODEV;
>> +        return err;
>>       }
>>       if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, 
>> "pcnet32_probe_pci")) {
>>           if (pcnet32_debug & NETIF_MSG_PROBE)
>

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Patch

diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index 35759a9..e8f8472 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -1992,9 +1992,9 @@  static int cx23885_initdev(struct pci_dev *pci_dev,
 		(unsigned long long)pci_resource_start(pci_dev, 0));
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail_context;
 	}
 
diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
index dbc695f..0042803 100644
--- a/drivers/media/pci/cx25821/cx25821-core.c
+++ b/drivers/media/pci/cx25821/cx25821-core.c
@@ -1319,7 +1319,8 @@  static int cx25821_initdev(struct pci_dev *pci_dev,
 		dev->pci_lat, (unsigned long long)dev->base_io_addr);
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 0ed1b65..1b5268f 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -890,9 +890,9 @@  static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
 		return err;
 	}
 
-	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci,DMA_BIT_MASK(32));
+	if (err) {
 		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
-		err = -EIO;
 		cx88_core_put(core, pci);
 		return err;
 	}
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 9db7767..f34c229 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -393,7 +393,8 @@  static int cx8802_init_common(struct cx8802_dev *dev)
 	if (pci_enable_device(dev->pci))
 		return -EIO;
 	pci_set_master(dev->pci);
-	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32));
+	if (err) {
 		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
 		return -EIO;
 	}
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 0de1ad5..aef9acf 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1314,9 +1314,9 @@  static int cx8800_initdev(struct pci_dev *pci_dev,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32));
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
-		err = -EIO;
 		goto fail_core;
 	}
 	dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index 60b2d46..3fdbd81 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -810,7 +810,7 @@  static int netup_unidvb_initdev(struct pci_dev *pci_dev,
 		"%s(): board vendor 0x%x, revision 0x%x\n",
 		__func__, board_vendor, board_revision);
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
 		dev_err(&pci_dev->dev,
 			"%s(): 32bit PCI DMA is not supported\n", __func__);
 		goto pci_detect_err;
diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
index e79d63e..f720cea 100644
--- a/drivers/media/pci/saa7134/saa7134-core.c
+++ b/drivers/media/pci/saa7134/saa7134-core.c
@@ -951,9 +951,9 @@  static int saa7134_initdev(struct pci_dev *pci_dev,
 	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
+	if (err) {
 		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail1;
 	}
 
diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index 8f36b48..8bbd092 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1264,9 +1264,9 @@  static int saa7164_initdev(struct pci_dev *pci_dev,
 
 	pci_set_master(pci_dev);
 	/* TODO */
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail_irq;
 	}
 
diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
index 8c5655d..4e77618 100644
--- a/drivers/media/pci/tw68/tw68-core.c
+++ b/drivers/media/pci/tw68/tw68-core.c
@@ -257,9 +257,9 @@  static int tw68_initdev(struct pci_dev *pci_dev,
 		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 		dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
+	if (err) {
 		pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail1;
 	}
 
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index e2afabf..7ccebae 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1500,10 +1500,11 @@  pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return -ENODEV;
 	}
 
-	if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
+	err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK);
+	if (err) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
-		return -ENODEV;
+		return err;
 	}
 	if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)