[RESEND PATCH 2/4] usb: musb: Fix NULL check on struct musb_request field

From: Paul Cercueil
Date: Tue Oct 27 2020 - 12:42:49 EST


The 'request' variable is a pointer to the 'request' field of the
struct musb_request 'req' pointer. It only worked until now because
the 'request' field is the first one in the musb_request structure, but
as soon as that changes, the check will be invalid.

Fix it preventively by doing the NULL-check on the 'req' pointer
instead.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Suggested-by: Maarten ter Huurne <maarten@xxxxxxxxxxxxxx>
---
drivers/usb/musb/musb_gadget.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f62ffaede1ab..ef374d4dd94a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -451,7 +451,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
return;
}

- if (request) {
+ if (req) {

trace_musb_req_tx(req);

--
2.28.0