[PATCH 5.4 128/147] usb: gadget: audio: Fix a missing error return value in audio_bind()

[Greg Kroah-Hartman]

From: Christophe JAILLET <christophe.jail...@wanadoo.fr>

commit 19b94c1f9c9a16d41a8de3ccbdb8536cf1aecdbf upstream.

If 'usb_otg_descriptor_alloc()' fails, we must return an error code, not 0.

Fixes: 56023ce0fd70 ("usb: gadget: audio: allocate and init otg descriptor by 
otg capabilities")
Reviewed-by: Peter Chen <peter.c...@nxp.com>
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Signed-off-by: Felipe Balbi <ba...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/usb/gadget/legacy/audio.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/usb/gadget/legacy/audio.c
+++ b/drivers/usb/gadget/legacy/audio.c
@@ -300,8 +300,10 @@ static int audio_bind(struct usb_composi
                struct usb_descriptor_header *usb_desc;
 
                usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
-               if (!usb_desc)
+               if (!usb_desc) {
+                       status = -ENOMEM;
                        goto fail;
+               }
                usb_otg_descriptor_init(cdev->gadget, usb_desc);
                otg_desc[0] = usb_desc;
                otg_desc[1] = NULL;