lkml.org 
[lkml]   [2020]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] drm/via: reduce no need mutex_lock area
Date
In function via_mem_alloc`s error branch, DRM_ERROR is protected
in the mutex_lock(&dev->struct_mutex) area.
From the code, we see that DRM_ERROR is just an error log print
without any struct element, there is no need to protect this.

Signed-off-by: Bernard Zhao <bernard@vivo.com>
---
drivers/gpu/drm/via/via_mm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c
index 45cc9e900260..dae1bacd86c1 100644
--- a/drivers/gpu/drm/via/via_mm.c
+++ b/drivers/gpu/drm/via/via_mm.c
@@ -129,9 +129,9 @@ int via_mem_alloc(struct drm_device *dev, void *data,
mutex_lock(&dev->struct_mutex);
if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
dev_priv->agp_initialized)) {
+ mutex_unlock(&dev->struct_mutex);
DRM_ERROR
("Attempt to allocate from uninitialized memory manager.\n");
- mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}

--
2.26.2
\
 
 \ /
  Last update: 2020-08-14 10:30    [W:0.406 / U:0.632 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site