MA-7253 bcmdhd: avoid null interface before update tx status
Avoid to access the null interface before update tx status.
This patch workaround to fix the panic when the p2p connection
disconnect in the p2p stress test. The interface will be
released during the disconnect process.
Signed-off-by: Haoran Wang <b50027@freescale.com>
diff --git a/drivers/net/wireless/bcmdhd/dhd_linux.c b/drivers/net/wireless/bcmdhd/dhd_linux.c
index 37a786a..26c3710 100644
--- a/drivers/net/wireless/bcmdhd/dhd_linux.c
+++ b/drivers/net/wireless/bcmdhd/dhd_linux.c
@@ -2147,6 +2147,9 @@
#ifdef PROP_TXSTATUS
if (dhdp->wlfc_state && (dhdp->proptxstatus_mode != WLFC_FCMODE_NONE)) {
dhd_if_t *ifp = dhd->iflist[DHD_PKTTAG_IF(PKTTAG(txp))];
+ /* if the interface is released somewhere just return */
+ if (ifp == NULL)
+ return;
uint datalen = PKTLEN(dhd->pub.osh, txp);
if (success) {
