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staging: wilc1000: fix incorrect strncasecmp length

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The strncasecmp of buff against the literal string RSSI
is using variable length which is zero. This should be instead
using the variable size instead.  Also remove the redundant
variable length.

Detected by PVS-Studio, warning: V575

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King 2017-04-08 00:44:03 +01:00 committed by Greg Kroah-Hartman
parent 0e490657c7
commit ba508685d9
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/wilc1000/linux_wlan.c
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@ -1074,7 +1074,7 @@ static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
{
u8 *buff = NULL;
s8 rssi;
u32 size = 0, length = 0;
u32 size = 0;
struct wilc_vif *vif;
s32 ret = 0;
struct wilc *wilc;
@ -1098,7 +1098,7 @@ static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
if (IS_ERR(buff))
return PTR_ERR(buff);
if (strncasecmp(buff, "RSSI", length) == 0) {
if (strncasecmp(buff, "RSSI", size) == 0) {
ret = wilc_get_rssi(vif, &rssi);
netdev_info(ndev, "RSSI :%d\n", rssi);