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gpu: vga_switcheroo, fix lock imbalance 

Stanse found that one error path in vga_switcheroo_debugfs_write omits to
unlock vgasr_mutex.  Fix that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jiri Slaby 2010-04-27 14:11:03 -07:00 committed by Dave Airlie
parent 404b017d00
commit 8c88e50bcf
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/vga/vga_switcheroo.c
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@ -276,8 +276,10 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf,
mutex_lock(&vgasr_mutex);
if (!vgasr_priv.active)
return -EINVAL;
if (!vgasr_priv.active) {
cnt = -EINVAL;
goto out;
}
/* pwr off the device not in use */
if (strncmp(usercmd, "OFF", 3) == 0) {