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staging: r8188eu: Fix smatch warning in os_dep/osdep_service.c

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Smatch reports the following warning:
drivers/staging/rtl8188eu/os_dep/osdep_service.c:634 rtw_change_ifname() warn: variable dereferenced before check 'padapter' (see line 630)

The dereference in question is deferred until the validity of 'padapter' is verified.

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
2013-09-04 15:56:00 -05:00
committed by Greg Kroah-Hartman
parent 9b276d2bd2
commit efbff73ec1
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/rtl8188eu/os_dep/osdep_service.c
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@@ -627,13 +627,14 @@ void rtw_free_netdev(struct net_device *netdev)
int rtw_change_ifname(struct adapter *padapter, const char *ifname)
{
struct net_device *pnetdev;
struct net_device *cur_pnetdev = padapter->pnetdev;
struct net_device *cur_pnetdev;
struct rereg_nd_name_data *rereg_priv;
int ret;
if (!padapter)
goto error;
cur_pnetdev = padapter->pnetdev;
rereg_priv = &padapter->rereg_nd_name_priv;
/* free the old_pnetdev */