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staging: rtl8712: Fix a possible NULL pointer dereference in function r8712_joinbss_event_callback

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GCC 10 analyzer reports a warning: dereference of NULL
The function r8712_find_network can return NULL and is usually checked but
no check is present is this case.
Fix by adding the check.

Signed-off-by: Lee Gibson <leegib@gmail.com>
Link: https://lore.kernel.org/r/20210319085836.8259-1-leegib@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lee Gibson 2021-03-19 08:58:36 +00:00 committed by Greg Kroah-Hartman
parent 62a19328c4
commit 105949497a
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/rtl8712/rtl871x_mlme.c
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@ -728,7 +728,8 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
r8712_find_network(&pmlmepriv->
scanned_queue,
cur_network->network.MacAddress);
pcur_wlan->fixed = false;
if (pcur_wlan)
pcur_wlan->fixed = false;
pcur_sta = r8712_get_stainfo(pstapriv,
cur_network->network.MacAddress);