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| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2017-09-12 16:37:49 +0300 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2017-09-13 10:52:05 +0300 |
| commit | 3fa6a073542fec11f388d687a4db5c64e1e347a4 (patch) | |
| tree | f68e2caf381d08c1a7a022dcefdd8f8bc5b719f9 /drivers/gpu/drm/drm_crtc.c | |
| parent | c2e4ff34f4a7631380fcae1b7381e24e9bc1345e (diff) | |
| download | linux-3fa6a073542fec11f388d687a4db5c64e1e347a4.tar.xz | |
drm/crtc: Convert setcrtc ioctl locking to interruptible.
Pass DRM_MODESET_ACQUIRE_INTERRUPTIBLE to acquire_init, and handle
drm_modeset_backoff which can now fail by returning the error.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170912133749.6532-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 5af25ce5bf7c..68b4e976d5e0 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -577,7 +577,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); mutex_lock(&crtc->dev->mode_config.mutex); - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); retry: ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx); if (ret) @@ -717,8 +717,9 @@ out: kfree(connector_set); drm_mode_destroy(dev, mode); if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); |