iwlwifi: mvm: silence uninitialized variable warning

"max_amsdu_len" isn't set if kstrtouint() fails.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 406cf1cb945c..b34489817c70 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1020,6 +1020,8 @@ static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
         int ret;
 
         ret = kstrtouint(buf, 0, &max_amsdu_len);
+        if (ret)
+                return ret;
 
         if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
                 return -EINVAL;