diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-03-07 21:42:08 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-03-08 16:44:03 +0200 |
| commit | 1b500535c513ac57fff89e917bda5863739636ad (patch) | |
| tree | 66084772c722077d13247eb8c5c9961a584583f3 /drivers/gpu | |
| parent | b90c1ee17b9e57a3fef241c2ebb26b5db7cc1937 (diff) | |
drm/i915: Avoid div-by-zero when computing aux_stride w/o an aux plane
To make life easier let's allow skl_plane_stride() to be called for the
AUX surface even when there is no AUX surface. Avoids special cases in
the callers.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-4-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e4474efe84f2..2f60b929acf5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3218,7 +3218,12 @@ static void skl_detach_scalers(struct intel_crtc *intel_crtc) u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane, unsigned int rotation) { - u32 stride = intel_fb_pitch(fb, plane, rotation); + u32 stride; + + if (plane >= fb->format->num_planes) + return 0; + + stride = intel_fb_pitch(fb, plane, rotation); /* * The stride is either expressed as a multiple of 64 bytes chunks for |