From 731209cc041779faac963578d901cb1caacbd738 Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Wed, 23 Aug 2017 12:20:07 +0200 Subject: [PATCH] ALSA: usb-midi: Use common error handling code in __snd_usbmidi_create() Add jump targets so that a bit of exception handling can be better reused at the end of this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Acked-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/usb/midi.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/sound/usb/midi.c b/sound/usb/midi.c index a35f41467237..bd9d02268724 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -2435,10 +2435,8 @@ int __snd_usbmidi_create(struct snd_card *card, err = -ENXIO; break; } - if (err < 0) { - kfree(umidi); - return err; - } + if (err < 0) + goto free_midi; /* create rawmidi device */ out_ports = 0; @@ -2448,23 +2446,25 @@ int __snd_usbmidi_create(struct snd_card *card, in_ports += hweight16(endpoints[i].in_cables); } err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); - if (err < 0) { - kfree(umidi); - return err; - } + if (err < 0) + goto free_midi; /* create endpoint/port structures */ if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); else err = snd_usbmidi_create_endpoints(umidi, endpoints); - if (err < 0) { - return err; - } + if (err < 0) + goto exit; usb_autopm_get_interface_no_resume(umidi->iface); list_add_tail(&umidi->list, midi_list); return 0; + +free_midi: + kfree(umidi); +exit: + return err; } EXPORT_SYMBOL(__snd_usbmidi_create); -- GitLab