diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index d5aec095d35..553da67a4cd 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -499,7 +499,9 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) struct radeon_cs_parser parser; int r; + down_read(&rdev->exclusive_lock); if (!rdev->accel_working) { + up_read(&rdev->exclusive_lock); return -EBUSY; } /* initialize parser */ @@ -512,6 +514,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) if (r) { DRM_ERROR("Failed to initialize parser !\n"); radeon_cs_parser_fini(&parser, r); + up_read(&rdev->exclusive_lock); r = radeon_cs_handle_lockup(rdev, r); return r; } @@ -520,6 +523,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) if (r != -ERESTARTSYS) DRM_ERROR("Failed to parse relocation %d!\n", r); radeon_cs_parser_fini(&parser, r); + up_read(&rdev->exclusive_lock); r = radeon_cs_handle_lockup(rdev, r); return r; } @@ -533,6 +537,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) } out: radeon_cs_parser_fini(&parser, r); + up_read(&rdev->exclusive_lock); r = radeon_cs_handle_lockup(rdev, r); return r; } |