| commit | 1e1a5f8f8c3a4b24b3fc0340880cf1e3949f4997 | [log] [tgz] |
|---|---|---|
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | Tue Jul 26 19:06:56 2016 +0300 |
| committer | Sean Paul <seanpaul@chromium.org> | Mon Aug 08 14:17:56 2016 -0400 |
| tree | 70cee84ece12318cb3d50c69a490925c7da115c8 | |
| parent | 31ad61e4afa53a7b2e364f7c021546fbc6ce0d85 [diff] [blame] |
drm: Warn about negative sizes when calculating scale factor Passing negative width/hight to scale factor calculations is not legal. Let's WARN if that happens. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1469549224-1860-2-git-send-email-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c index 4063f6e..73e53a8 100644 --- a/drivers/gpu/drm/drm_rect.c +++ b/drivers/gpu/drm/drm_rect.c
@@ -100,7 +100,7 @@ { int scale = 0; - if (src < 0 || dst < 0) + if (WARN_ON(src < 0 || dst < 0)) return -EINVAL; if (dst == 0)