1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index c9f93310c0d6..76842e6ca38e 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -651,6 +651,7 @@ int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids cmd,
         unsigned int plen, void *payload, unsigned int outlen, void *out)
 {
         int err = -ENOMEM;
+        unsigned long time_left;
 
         if (!IS_ACCEPTING_CMD(ar))
                 return -EIO;
@@ -672,8 +673,8 @@ int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids cmd,
         err = __carl9170_exec_cmd(ar, &ar->cmd, false);
 
         if (!(cmd & CARL9170_CMD_ASYNC_FLAG)) {
-                err = wait_for_completion_timeout(&ar->cmd_wait, HZ);
-                if (err == 0) {
+                time_left = wait_for_completion_timeout(&ar->cmd_wait, HZ);
+                if (time_left == 0) {
                         err = -ETIMEDOUT;
                         goto err_unbuf;
                 }