[PATCH] TTY: hvcs: fix missing unlock on error in hvcs_initialize()
Wei Yongjun
weiyj.lk at gmail.com
Mon Oct 22 15:42:59 EST 2012
From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
Add the missing unlock on the error handling path in function
hvcs_initialize().
Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
---
drivers/tty/hvc/hvcs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index cab5c7a..744c3b8 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;
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