[PATCH 5.11 537/601] ALSA: usb: midi: dont return -ENOMEM when usb_urb_ep_type_check fails

Greg Kroah-Hartman
2021-05-12T17:56:48Z

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit cfd577acb769301b19c31361d45ae1f145318b7a ]

Currently when the call to usb_urb_ep_type_check fails (returning -EINVAL)
the error return path returns -ENOMEM via the exit label "error". Other
uses of the same error exit label set the err variable to -ENOMEM but this
is not being used. I believe the original intent was for the error exit
path to return the value in err rather than the hard coded -ENOMEM, so
return this rather than the hard coded -ENOMEM.

Addresses-Coverity: ("Unused value")
Fixes: 738d9edcfd44 ("ALSA: usb-audio: Add sanity checks for invalid EPs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210420134719.381409-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/usb/midi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 0c23fa6d8525..cd46ca7cd28d 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -1332,7 +1332,7 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi,

error:
snd_usbmidi_in_endpoint_delete(ep);
- return -ENOMEM;
+ return err;
}

/*
--
2.30.2