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>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c
index 6c3d531a250e..1a75c36932d8 100644
--- 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);