1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c
index 883b5f79673a..a6c12dec91a1 100644
--- a/drivers/watchdog/w83697ug_wdt.c
+++ b/drivers/watchdog/w83697ug_wdt.c
@@ -149,8 +149,10 @@ static void wdt_ctrl(int timeout)
 {
         spin_lock(&io_lock);
 
-        if (w83697ug_select_wd_register() < 0)
+        if (w83697ug_select_wd_register() < 0) {
+                spin_unlock(&io_lock);
                 return;
+        }
 
         outb_p(0xF4, WDT_EFER);    /* Select CRF4 */
         outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF4 */