diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2015-11-11 11:29:10 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-11-17 12:02:14 +0100 |
| commit | f72c6b33edda439acff81a0da612f2bcd1f46f35 (patch) | |
| tree | 008194388572c3ff7b594f06214a23b0406efc04 /drivers/gpu | |
| parent | drm/atomic: add a drm_atomic_clean_old_fb helper. (diff) | |
| download | linux-f72c6b33edda439acff81a0da612f2bcd1f46f35.tar.xz linux-f72c6b33edda439acff81a0da612f2bcd1f46f35.zip | |
drm/core: Fix old_fb handling in restore_fbdev_mode_atomic.
Don't touch plane->old_fb/fb without having the right locks held.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447237751-9663-5-git-send-email-maarten.lankhorst@ubuntu.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index e673c13c7391..abd50863506e 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -342,6 +342,7 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper) struct drm_plane *plane; struct drm_atomic_state *state; int i, ret; + unsigned plane_mask; state = drm_atomic_state_alloc(dev); if (!state) @@ -349,11 +350,10 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper) state->acquire_ctx = dev->mode_config.acquire_ctx; retry: + plane_mask = 0; drm_for_each_plane(plane, dev) { struct drm_plane_state *plane_state; - plane->old_fb = plane->fb; - plane_state = drm_atomic_get_plane_state(state, plane); if (IS_ERR(plane_state)) { ret = PTR_ERR(plane_state); @@ -362,6 +362,9 @@ retry: plane_state->rotation = BIT(DRM_ROTATE_0); + plane->old_fb = plane->fb; + plane_mask |= 1 << drm_plane_index(plane); + /* disable non-primary: */ if (plane->type == DRM_PLANE_TYPE_PRIMARY) continue; @@ -382,19 +385,7 @@ retry: ret = drm_atomic_commit(state); fail: - drm_for_each_plane(plane, dev) { - if (ret == 0) { - struct drm_framebuffer *new_fb = plane->state->fb; - if (new_fb) - drm_framebuffer_reference(new_fb); - plane->fb = new_fb; - plane->crtc = plane->state->crtc; - - if (plane->old_fb) - drm_framebuffer_unreference(plane->old_fb); - } - plane->old_fb = NULL; - } + drm_atomic_clean_old_fb(dev, plane_mask, ret); if (ret == -EDEADLK) goto backoff; |