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[21/29] drm/nouveau: Drop dev->struct_mutex from fbdev init

Message ID 1448271183-20523-22-git-send-email-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show

Commit Message

Daniel Vetter Nov. 23, 2015, 9:32 a.m. UTC 
Doesn't protect anything at all.

With this patch nouveau is completely dev->struct_mutex free!

Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 5 -----
 1 file changed, 5 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 59f27e774acb..3bae706126bd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -386,8 +386,6 @@  nouveau_fbcon_create(struct drm_fb_helper *helper,
 		}
 	}
 
-	mutex_lock(&dev->struct_mutex);
-
 	info = drm_fb_helper_alloc_fbi(helper);
 	if (IS_ERR(info)) {
 		ret = PTR_ERR(info);
@@ -426,8 +424,6 @@  nouveau_fbcon_create(struct drm_fb_helper *helper,
 
 	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
-	mutex_unlock(&dev->struct_mutex);
-
 	if (chan)
 		nouveau_fbcon_accel_init(dev);
 	nouveau_fbcon_zfill(dev, fbcon);
@@ -441,7 +437,6 @@  nouveau_fbcon_create(struct drm_fb_helper *helper,
 	return 0;
 
 out_unlock:
-	mutex_unlock(&dev->struct_mutex);
 	if (chan)
 		nouveau_bo_vma_del(nvbo, &fbcon->nouveau_fb.vma);
 	nouveau_bo_unmap(nvbo);