wcn36xx: harmless memory corruption bug in debugfs

On 64 bit systems we write past the end of the arg[] array.

Fixes: 8e84c2582169 ('wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c
index 5b84f7ae0b1e..ef44a2da644d 100644
--- a/drivers/net/wireless/ath/wcn36xx/debug.c
+++ b/drivers/net/wireless/ath/wcn36xx/debug.c
@@ -126,7 +126,7 @@ static ssize_t write_file_dump(struct file *file,
                 if (begin == NULL)
                         break;
 
-                if (kstrtoul(begin, 0, (unsigned long *)(arg + i)) != 0)
+                if (kstrtou32(begin, 0, &arg[i]) != 0)
                         break;
         }