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drm: fix blob pointer check

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Check properly that the allocated blob's pointer is valid.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Daniel Stone <daniels@collabora.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Daniel Stone <daniels@collabora.com>
Fixes: 5488dc16fd ("drm: introduce pipe color correction properties")
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1457611461-9116-1-git-send-email-lionel.g.landwerlin@intel.com
This commit is contained in:
Lionel Landwerlin 2016-03-10 12:04:21 +00:00 committed by Daniel Vetter
parent 5488dc16fd
commit 562c5b4d89
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/drm_atomic_helper.c
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@ -2924,8 +2924,8 @@ void drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc,
blob = drm_property_create_blob(dev,
sizeof(struct drm_color_lut) * size,
NULL);
if (!blob) {
ret = -ENOMEM;
if (IS_ERR(blob)) {
ret = PTR_ERR(blob);
goto fail;
}