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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-10-22 08:42:59 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-24 22:37:02 +0400
commitad3d1e5fc94e1d617298cf9b8fb522e2d219521a (patch)
tree3acb66c8bef8d114ee09b1422acbbbbc3502e61b /drivers/tty/hvc
parent08ec212c0f92cbf30e3ecc7349f18151714041d6 (diff)
downloadlinux-ad3d1e5fc94e1d617298cf9b8fb522e2d219521a.tar.xz
TTY: hvcs: fix missing unlock on error in hvcs_initialize()
Add the missing unlock on the error handling path in function hvcs_initialize(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/hvc')
-rw-r--r--drivers/tty/hvc/hvcs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index cab5c7adf8e8..744c3b8eea49 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1496,8 +1496,10 @@ static int __devinit hvcs_initialize(void)
num_ttys_to_alloc = hvcs_parm_num_devs;
hvcs_tty_driver = alloc_tty_driver(num_ttys_to_alloc);
- if (!hvcs_tty_driver)
+ if (!hvcs_tty_driver) {
+ mutex_unlock(&hvcs_init_mutex);
return -ENOMEM;
+ }
if (hvcs_alloc_index_list(num_ttys_to_alloc)) {
rc = -ENOMEM;