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staging: r8188eu: Fix more Smatch warnings and errors

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After updating Smatch, the following new errors and warnings are reported:

drivers/staging/rtl8188eu/core/rtw_recv.c:368 recvframe_chkmic() warn: variable dereferenced before check 'psecuritypriv' (see line 364)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:2642 rtw_wps_start() warn: variable dereferenced before check 'pdata' (see line 2636)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:4461 rtw_dbg_port() error: we previously assumed 'pregpriv' could be null (see line 4453)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:4473 rtw_dbg_port() error: we previously assumed 'pregpriv' could be null (see line 4469)

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Larry Finger 2014-02-12 16:14:35 -06:00 committed by Greg Kroah-Hartman
parent c3eaaf8b5b
commit cf867c3930
2 changed files with 12 additions and 13 deletions
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7
drivers/staging/rtl8188eu/core/rtw_recv.c
View file

@ -361,16 +361,15 @@ static int recvframe_chkmic(struct adapter *adapter, union recv_frame *precvfra
/* calculate mic code */
if (stainfo != NULL) {
if (IS_MCAST(prxattrib->ra)) {
mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
if (!psecuritypriv) {
res = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
goto exit;
}
mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
} else {
mickey = &stainfo->dot11tkiprxmickey.skey[0];
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));

18
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
View file

@ -2633,13 +2633,13 @@ static int rtw_wps_start(struct net_device *dev,
struct iw_point *pdata = &wrqu->data;
u32 u32wps_start = 0;
ret = copy_from_user((void *)&u32wps_start, pdata->pointer, 4);
if (ret) {
if ((padapter->bDriverStopped) || (pdata == NULL)) {
ret = -EINVAL;
goto exit;
}
if ((padapter->bDriverStopped) || (pdata == NULL)) {
ret = copy_from_user((void *)&u32wps_start, pdata->pointer, 4);
if (ret) {
ret = -EINVAL;
goto exit;
}
@ -4450,11 +4450,9 @@ static int rtw_dbg_port(struct net_device *dev,
struct registry_priv *pregpriv = &padapter->registrypriv;
/* 0: disable, bit(0):enable 2.4g, bit(1):enable 5g, 0x3: enable both 2.4g and 5g */
/* default is set to enable 2.4GHZ for IOT issue with bufflao's AP at 5GHZ */
if (pregpriv &&
(extra_arg == 0 ||
extra_arg == 1 ||
extra_arg == 2 ||
extra_arg == 3)) {
if (!pregpriv)
break;
if (extra_arg >= 0 && extra_arg <= 3) {
pregpriv->rx_stbc = extra_arg;
DBG_88E("set rx_stbc =%d\n", pregpriv->rx_stbc);
} else {
@ -4466,7 +4464,9 @@ static int rtw_dbg_port(struct net_device *dev,
{
struct registry_priv *pregpriv = &padapter->registrypriv;
/* 0: disable, 0x1:enable (but wifi_spec should be 0), 0x2: force enable (don't care wifi_spec) */
if (pregpriv && extra_arg >= 0 && extra_arg < 3) {
if (!pregpriv)
break;
if (extra_arg >= 0 && extra_arg < 3) {
pregpriv->ampdu_enable = extra_arg;
DBG_88E("set ampdu_enable =%d\n", pregpriv->ampdu_enable);
} else {