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| /openbmc/linux/drivers/gpu/drm/i915/display/ |
| H A D | intel_overlay.c | cf5b64f7 Mon Jan 24 06:24:09 CST 2022 Dan Carpenter <dan.carpenter@oracle.com> drm/i915/overlay: Prevent divide by zero bugs in scaling
Smatch detected a divide by zero bug in check_overlay_scaling().
drivers/gpu/drm/i915/display/intel_overlay.c:976 check_overlay_scaling()
error: potential divide by zero bug '/ rec->dst_height'.
drivers/gpu/drm/i915/display/intel_overlay.c:980 check_overlay_scaling()
error: potential divide by zero bug '/ rec->dst_width'.
Prevent this by ensuring that the dst height and width are non-zero.
Fixes: 02e792fbaadb ("drm/i915: implement drmmode overlay support v4")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220124122409.GA31673@kili
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