diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-12-13 09:05:49 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-12-17 09:23:16 -0500 |
| commit | b67ce39a30976171e7b96b30a94a0216ab89df97 (patch) | |
| tree | 81924e72b3b1d49aac012379c1f379c8740f9393 /drivers | |
| parent | c745fe611ca42295c9d91d8e305d27983e9132ef (diff) | |
drm/radeon: check for 0 count in speaker allocation and SAD code
If there is no speaker allocation block or SAD block, bail
early.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=72283
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/dce6_afmt.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_hdmi.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index ab59fd76f2d9..713a5d359901 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -174,7 +174,7 @@ void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder) } sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb); - if (sad_count < 0) { + if (sad_count <= 0) { DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count); return; } @@ -235,7 +235,7 @@ void dce6_afmt_write_sad_regs(struct drm_encoder *encoder) } sad_count = drm_edid_to_sad(radeon_connector->edid, &sads); - if (sad_count < 0) { + if (sad_count <= 0) { DRM_ERROR("Couldn't read SADs: %d\n", sad_count); return; } diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index aa695c4feb3d..0c6d5cef4cf1 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -118,7 +118,7 @@ static void dce4_afmt_write_speaker_allocation(struct drm_encoder *encoder) } sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb); - if (sad_count < 0) { + if (sad_count <= 0) { DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count); return; } @@ -173,7 +173,7 @@ static void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder) } sad_count = drm_edid_to_sad(radeon_connector->edid, &sads); - if (sad_count < 0) { + if (sad_count <= 0) { DRM_ERROR("Couldn't read SADs: %d\n", sad_count); return; } |