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authorAlex Deucher <alexander.deucher@amd.com>2013-12-13 09:05:49 -0500
committerAlex Deucher <alexander.deucher@amd.com>2013-12-17 09:23:16 -0500
commitb67ce39a30976171e7b96b30a94a0216ab89df97 (patch)
tree81924e72b3b1d49aac012379c1f379c8740f9393
parentc745fe611ca42295c9d91d8e305d27983e9132ef (diff)
downloadop-kernel-dev-b67ce39a30976171e7b96b30a94a0216ab89df97.zip
op-kernel-dev-b67ce39a30976171e7b96b30a94a0216ab89df97.tar.gz
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
-rw-r--r--drivers/gpu/drm/radeon/dce6_afmt.c4
-rw-r--r--drivers/gpu/drm/radeon/evergreen_hdmi.c4
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 ab59fd7..713a5d3 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 aa695c4..0c6d5ce 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;
}
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