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| author | Andrzej Hajda <a.hajda@samsung.com> | 2015-09-21 15:33:47 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-09-24 08:13:09 +1000 |
| commit | 14d11b8dca17f6dedf4b62d7391b9b294e3414ff (patch) | |
| tree | d736e1992a6ab26ca66f94d34d948e1d8fec4062 /drivers/gpu/drm/fsl-dcu | |
| parent | 728f86607d47f7d2d24d61fd30852faa66ca5aa9 (diff) | |
| download | linux-0-day-14d11b8dca17f6dedf4b62d7391b9b294e3414ff.tar.gz linux-0-day-14d11b8dca17f6dedf4b62d7391b9b294e3414ff.tar.xz | |
drm/layerscape: fix handling fsl_dcu_drm_plane_index result
The function can return negative value.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index 82be6b86a1686..d1e300dcd544a 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -58,7 +58,8 @@ static void fsl_dcu_drm_plane_atomic_disable(struct drm_plane *plane, struct drm_plane_state *old_state) { struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private; - unsigned int index, value, ret; + unsigned int value; + int index, ret; index = fsl_dcu_drm_plane_index(plane); if (index < 0) |