From: Colin Ian King Date: Wed, 4 May 2022 13:58:40 +0000 (+0100) Subject: USB: gadget: Fix return of -EBUSY X-Git-Tag: v6.1-rc5~1161^2~57 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d7c90d9f9a5b6a85c09d37c5616d880d849a0c8b;p=platform%2Fkernel%2Flinux-starfive.git USB: gadget: Fix return of -EBUSY Currently when driver->match_existing_only is true, the error return is set to -EBUSY however ret is then set to 0 at the end of the if/else statement. I believe the ret = 0 statement should be set in the else part of the if statement and not at the end to ensure -EBUSY is being returned correctly. Detected by clang scan: drivers/usb/gadget/udc/core.c:1558:4: warning: Value stored to 'ret' is never read [deadcode.DeadStores] Fixes: fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") Acked-by: Alan Stern Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20220504135840.232209-1-colin.i.king@gmail.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 6179059..3281d8a 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1559,8 +1559,8 @@ int usb_gadget_register_driver_owner(struct usb_gadget_driver *driver, } else { pr_info("%s: couldn't find an available UDC\n", driver->function); + ret = 0; } - ret = 0; } mutex_unlock(&udc_lock);