1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index d8cf06f186f2..3af5e2dd1d82 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -286,7 +286,8 @@ static struct async *alloc_async(unsigned int numisoframes)
 static void free_async(struct async *as)
 {
         put_pid(as->pid);
-        put_cred(as->cred);
+        if (as->cred)
+                put_cred(as->cred);
         kfree(as->urb->transfer_buffer);
         kfree(as->urb->setup_packet);
         usb_free_urb(as->urb);