From: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon, 1 Aug 2011 22:40:01 +0000 (-0700)
Subject: net: wireless: bcmdhd: Check wldev_ioctl() for NULL parameter
X-Git-Tag: firefly_0821_release~7613^2~380
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5b1186350d67a7e1a2394de4df3fc937cd1ea3b8;p=firefly-linux-kernel-4.4.55.git

net: wireless: bcmdhd: Check wldev_ioctl() for NULL parameter

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
---

diff --git a/drivers/net/wireless/bcmdhd/wldev_common.c b/drivers/net/wireless/bcmdhd/wldev_common.c
index 31e8f3cb86fd..429cd2c451e4 100644
--- a/drivers/net/wireless/bcmdhd/wldev_common.c
+++ b/drivers/net/wireless/bcmdhd/wldev_common.c
@@ -47,6 +47,11 @@ s32 wldev_ioctl(
 	mm_segment_t fs;
 	s32 err = 0;
 
+	if (!dev) {
+		DHD_ERROR(("%s: dev is null\n", __FUNCTION__));
+		return -EINVAL;
+	}
+
 	memset(&ioc, 0, sizeof(ioc));
 	ioc.cmd = cmd;
 	ioc.buf = arg;