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| author | Jerome Glisse <jglisse@redhat.com> | 2012-02-21 02:57:20 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-02-22 14:30:02 +0400 |
| commit | 6b7746e8768e1c550b320d5af761f73e5aa37f76 (patch) | |
| tree | ad04aeca4bbc904418d21717f17689f1c0aa5bf7 /drivers/gpu/drm/radeon/radeon_cs.c | |
| parent | f0d14daa6906070ca044b86f483fdde7d81f5294 (diff) | |
| download | linux-6b7746e8768e1c550b320d5af761f73e5aa37f76.tar.xz | |
drm/radeon/kms: properly set accel working flag and bailout when false
If accel is not working many subsystem such as the ib pool might not be
initialized properly that can lead to segfault inside kernel when cs
ioctl is call with non working acceleration. To avoid this make sure
the accel working flag is false when an error in GPU startup happen and
return EBUSY from cs ioctl if accel is not working.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 435a3d970ab8..e64bec488ed8 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -453,6 +453,10 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) int r; radeon_mutex_lock(&rdev->cs_mutex); + if (!rdev->accel_working) { + radeon_mutex_unlock(&rdev->cs_mutex); + return -EBUSY; + } /* initialize parser */ memset(&parser, 0, sizeof(struct radeon_cs_parser)); parser.filp = filp; |