LinuxTV Patchwork [05/14] media: wl128x-radio: remove global radio_disconnected

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Submitter Sebastian Reichel
Date Dec. 21, 2018, 1:17 a.m.
Message ID <20181221011752.25627-6-sre@kernel.org>
Download mbox | patch
Permalink /patch/53609/
State New
Delegated to: Hans Verkuil
Headers show

Comments

Sebastian Reichel - Dec. 21, 2018, 1:17 a.m.
From: Sebastian Reichel <sebastian.reichel@collabora.com>

Move global radio_disconnected into device structure to
prepare converting this driver into a normal platform
device driver supporting multiple instances.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/media/radio/wl128x/fmdrv.h      |  1 +
 drivers/media/radio/wl128x/fmdrv_v4l2.c | 15 +++++++--------
 2 files changed, 8 insertions(+), 8 deletions(-)
Pavel Machek - Dec. 22, 2018, 7:10 p.m.
On Fri 2018-12-21 02:17:43, Sebastian Reichel wrote:
> From: Sebastian Reichel <sebastian.reichel@collabora.com>
> 
> Move global radio_disconnected into device structure to
> prepare converting this driver into a normal platform
> device driver supporting multiple instances.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Acked-by: Pavel Machek <pavel@ucw.cz>

Patch

diff --git a/drivers/media/radio/wl128x/fmdrv.h b/drivers/media/radio/wl128x/fmdrv.h
index 8ed7c0aeb8b9..fa89eef59295 100644
--- a/drivers/media/radio/wl128x/fmdrv.h
+++ b/drivers/media/radio/wl128x/fmdrv.h
@@ -201,6 +201,7 @@  struct fmdev {
 	struct v4l2_device v4l2_dev;	/* V4L2 top level struct */
 	struct snd_card *card;	/* Card which holds FM mixer controls */
 	u16 asci_id;
+	u8 radio_disconnected;
 	spinlock_t rds_buff_lock; /* To protect access to RDS buffer */
 	spinlock_t resp_skb_lock; /* To protect access to received SKB */
 
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
index e25fd4d4d280..f541b5802844 100644
--- a/drivers/media/radio/wl128x/fmdrv_v4l2.c
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -33,7 +33,6 @@ 
 #include "fmdrv_tx.h"
 
 static struct video_device gradio_dev;
-static u8 radio_disconnected;
 
 /* -- V4L2 RADIO (/dev/radioX) device file operation interfaces --- */
 
@@ -47,7 +46,7 @@  static ssize_t fm_v4l2_fops_read(struct file *file, char __user * buf,
 
 	fmdev = video_drvdata(file);
 
-	if (!radio_disconnected) {
+	if (!fmdev->radio_disconnected) {
 		fmerr("FM device is already disconnected\n");
 		return -EIO;
 	}
@@ -126,14 +125,14 @@  static int fm_v4l2_fops_open(struct file *file)
 	int ret;
 	struct fmdev *fmdev = NULL;
 
+	fmdev = video_drvdata(file);
+
 	/* Don't allow multiple open */
-	if (radio_disconnected) {
+	if (fmdev->radio_disconnected) {
 		fmerr("FM device is already opened\n");
 		return -EBUSY;
 	}
 
-	fmdev = video_drvdata(file);
-
 	if (mutex_lock_interruptible(&fmdev->mutex))
 		return -ERESTARTSYS;
 	ret = fmc_prepare(fmdev);
@@ -149,7 +148,7 @@  static int fm_v4l2_fops_open(struct file *file)
 		fmerr("Unable to load FM RX firmware\n");
 		goto open_unlock;
 	}
-	radio_disconnected = 1;
+	fmdev->radio_disconnected = 1;
 
 open_unlock:
 	mutex_unlock(&fmdev->mutex);
@@ -162,7 +161,7 @@  static int fm_v4l2_fops_release(struct file *file)
 	struct fmdev *fmdev;
 
 	fmdev = video_drvdata(file);
-	if (!radio_disconnected) {
+	if (!fmdev->radio_disconnected) {
 		fmdbg("FM device is already closed\n");
 		return 0;
 	}
@@ -179,7 +178,7 @@  static int fm_v4l2_fops_release(struct file *file)
 		fmerr("FM CORE release failed\n");
 		goto release_unlock;
 	}
-	radio_disconnected = 0;
+	fmdev->radio_disconnected = 0;
 
 release_unlock:
 	mutex_unlock(&fmdev->mutex);

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