ALSA: usb/6fire: Fix potential NULL pointer dereference in comm.c

'rt' was dereferenced before the NULL check.
Moved the code after the check.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c
index 6c3d531..1a75c36 100644 (file)
--- a/sound/usb/6fire/comm.c
+++ b/sound/usb/6fire/comm.c
@@ -129,12 +129,13 @@ int __devinit usb6fire_comm_init(struct sfire_chip *chip)
 {
        struct comm_runtime *rt = kzalloc(sizeof(struct comm_runtime),
                        GFP_KERNEL);
-       struct urb *urb = &rt->receiver;
+       struct urb *urb;
        int ret;
 
        if (!rt)
                return -ENOMEM;
 
+       urb = &rt->receiver;
        rt->serial = 1;
        rt->chip = chip;
        usb_init_urb(urb);