diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-12-13 09:05:49 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-09 12:25:11 -0800 |
| commit | 747cab61d821b71da8316b4927f45ff5eb0f5caf (patch) | |
| tree | 38c74aa5fbcb7ccbb7f44e0d8bc88538d4488b38 /drivers/gpu | |
| parent | 677e753653ae531e38edcfd4c1d61205790655f7 (diff) | |
drm/radeon: check for 0 count in speaker allocation and SAD code
commit b67ce39a30976171e7b96b30a94a0216ab89df97 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -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 9fcd338c0fc..86ee0978392 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -132,7 +132,7 @@ 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; } @@ -193,7 +193,7 @@ 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 57fcc4b16a5..b347fffa451 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -81,7 +81,7 @@ 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; } @@ -134,7 +134,7 @@ 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; } |