[PATCH] usb: musb: Fix potential NULL dereference

[Matwey V. Kornilov]

We assign "urb->hcpriv = qh;" a few lines down. The valid qh for the urb is
hep->hcpriv in this code path.

Fixes: 714bc5ef3eda ("musb: potential use after free")
Signed-off-by: Matwey V. Kornilov <mat...@sai.msu.ru>
---
 drivers/usb/musb/musb_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index c6118a962d37..6f267716768e 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2336,7 +2336,7 @@ static int musb_urb_enqueue(
                 * odd, rare, error prone, but legal.
                 */
                kfree(qh);
-               qh = NULL;
+               qh = hep->hcpriv;
                ret = 0;
        } else
                ret = musb_schedule(musb, qh,
-- 
2.16.4