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 31e8f3c..429cd2c 100644 (file)
--- 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;