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authorMarkus Elfring <elfring@users.sourceforge.net>2017-09-24 12:00:57 +0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-10-31 13:37:22 +0300
commitbfba2b3e21b9426c0f9aca00f3cad8631b2da170 (patch)
tree8ef4bb970c7a57eda58cb2a9773749d323b6cad5 /drivers/media/platform/omap
parent1bfbb88564b17bbc2187cbce9e867628532ce1a8 (diff)
downloadlinux-bfba2b3e21b9426c0f9aca00f3cad8631b2da170.tar.xz
media: omap_vout: Fix a possible null pointer dereference in omap_vout_open()
Move a debug message so that a null pointer access can not happen for the variable "vout" in this function. Fixes: 5c7ab6348e7b3fcca2b8ee548306c774472971e2 ("V4L/DVB: V4L2: Add support for OMAP2/3 V4L2 display driver on top of DSS2") Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/omap')
-rw-r--r--drivers/media/platform/omap/omap_vout.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 4d29860d27b4..6f1b0c799e58 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -1004,11 +1004,12 @@ static int omap_vout_open(struct file *file)
struct omap_vout_device *vout = NULL;
vout = video_drvdata(file);
- v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
if (vout == NULL)
return -ENODEV;
+ v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
+
/* for now, we only support single open */
if (vout->opened)
return -EBUSY;