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drm/nouveau: Drop dev->struct_mutex from fbdev init 

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>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-6-git-send-email-daniel.vetter@ffwll.ch
hifive-unleashed-5.1
Daniel Vetter 2016-03-30 11:40:44 +02:00
parent 068149ad22
commit ca25d6b08f
1 changed files with 0 additions and 5 deletions
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5
drivers/gpu/drm/nouveau/nouveau_fbcon.c
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@ -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);