commit 5b1186350d67a7e1a2394de4df3fc937cd1ea3b8
author Dmitry Shmidt <dimitrysh@google.com> Mon Aug 01 15:40:01 2011 -0700
committer Dmitry Shmidt <dimitrysh@google.com> Tue Aug 02 15:45:28 2011 -0700
tree be33e40b2bffc62fb57f0ee6760032284ac99772
parent b0ebe79d6616fbd5a1fe8f08b5a6ba5d38d19841

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

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

drivers/net/wireless/bcmdhd/wldev_common.c

diff --git a/drivers/net/wireless/bcmdhd/wldev_common.c b/drivers/net/wireless/bcmdhd/wldev_common.c
index 31e8f3c..429cd2c 100644
--- a/drivers/net/wireless/bcmdhd/wldev_common.c
+++ b/drivers/net/wireless/bcmdhd/wldev_common.c
@@ -47,6 +47,11 @@
 	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;