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>
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 @@
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;