From: "Felipe F. Tonello" <eu@xxxxxxxxxxxxxxxxx>
f_midi is not checking weather the is an error on usb_ep_queue
request, ignoring potential problems, such as memory leaks.
Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_midi.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index ad50a67..a5e446d 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -543,8 +543,14 @@ static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
}
}
- if (req->length > 0)
- usb_ep_queue(ep, req, GFP_ATOMIC);
+ if (req->length > 0) {
+ int err;
+
+ err = usb_ep_queue(ep, req, GFP_ATOMIC);
+ if (err < 0)
+ ERROR(midi, "%s queue req: %d\n",
+ midi->out_ep->name, err);
+ }
else
free_ep_req(ep, req);
}
--
2.1.4
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