[media] davinci: vpif_capture: fix potential NULL deref

Message ID 20170711190752.30142-1-khilman@baylibre.com (mailing list archive)
State Superseded, archived
Delegated to: Hans Verkuil
Headers

Commit Message

Kevin Hilman July 11, 2017, 7:07 p.m. UTC
  Fix potential NULL pointer dereference in the error path of memory
allocation failure.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
---
 drivers/media/platform/davinci/vpif_capture.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
  

Comments

Sakari Ailus July 11, 2017, 7:38 p.m. UTC | #1
On Tue, Jul 11, 2017 at 12:07:52PM -0700, Kevin Hilman wrote:
> Fix potential NULL pointer dereference in the error path of memory
> allocation failure.
> 
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Signed-off-by: Kevin Hilman <khilman@baylibre.com>

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
  

Patch

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index d78580f9e431..2e36d8a9f5e3 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1593,10 +1593,12 @@  vpif_capture_get_pdata(struct platform_device *pdev)
 	}
 
 done:
-	pdata->asd_sizes[0] = i;
-	pdata->subdev_count = i;
-	pdata->card_name = "DA850/OMAP-L138 Video Capture";
-
+	if (pdata) {
+		pdata->asd_sizes[0] = i;
+		pdata->subdev_count = i;
+		pdata->card_name = "DA850/OMAP-L138 Video Capture";
+	}
+	
 	return pdata;
 }