From bbe4b99ff2443e305598768ae8eac6bc3516b7c9 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 2 Dec 2012 01:48:38 +0100 Subject: [PATCH] drm/vmwgfx: use drm_modeset_lock_all Ok, this one here is a bit more complicated, and I can't really claim to fully understand the locking and lifetime rules of the vmwgfx driver. So just convert ever mutex_lock call, including the interruptible one. Since other places (e.g. in the execbuf ioctl) take the mode_config.mutex without bothering with interruptible handling, I've figured I should be able to get away with this in a few more places ... Signed-off-by: Daniel Vetter --- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index d9fbbe191071..a135498a1298 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -163,11 +163,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data, goto out_no_copy; } - ret = mutex_lock_interruptible(&dev->mode_config.mutex); - if (unlikely(ret != 0)) { - ret = -ERESTARTSYS; - goto out_no_mode_mutex; - } + drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB); if (!obj) { @@ -200,8 +196,7 @@ out_no_surface: ttm_read_unlock(&vmaster->lock); out_no_ttm_lock: out_no_fb: - mutex_unlock(&dev->mode_config.mutex); -out_no_mode_mutex: + drm_modeset_unlock_all(dev); out_no_copy: kfree(clips); out_clips: @@ -251,11 +246,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data, goto out_no_copy; } - ret = mutex_lock_interruptible(&dev->mode_config.mutex); - if (unlikely(ret != 0)) { - ret = -ERESTARTSYS; - goto out_no_mode_mutex; - } + drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB); if (!obj) { @@ -282,8 +273,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data, ttm_read_unlock(&vmaster->lock); out_no_ttm_lock: out_no_fb: - mutex_unlock(&dev->mode_config.mutex); -out_no_mode_mutex: + drm_modeset_unlock_all(dev); out_no_copy: kfree(clips); out_clips: -- 2.20.1