staging: rtl8192u: r8192U_core: Fix driver_info dereference as a null pointer
Fix possible use of use of driver_info as a null pointer in
query_rxdesc_status()
This could happen if stats->RxIs40MHzPacket still has the
default value of zero.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 0d64d2d..8f7a321 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -4476,13 +4476,10 @@
skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
}
- /* for debug 2008.5.29 */
-
- //added by vivi, for MP, 20080108
- stats->RxIs40MHzPacket = driver_info->BW;
- if (stats->RxDrvInfoSize != 0)
+ if (driver_info) {
+ stats->RxIs40MHzPacket = driver_info->BW;
TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
-
+ }
}
static void rtl8192_rx_nomal(struct sk_buff *skb)