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Subject[PATCH 2/3] ALSA: rawmidi: Use common error handling code in snd_rawmidi_new()
From
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 11 Nov 2017 11:36:25 +0100

Add a jump target 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 <elfring@users.sourceforge.net>
---
sound/core/rawmidi.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index c17f173150e9..34686000ecce 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1560,10 +1560,8 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
->streams[SNDRV_RAWMIDI_STREAM_INPUT],
SNDRV_RAWMIDI_STREAM_INPUT,
input_count);
- if (err < 0) {
- snd_rawmidi_free(rmidi);
- return err;
- }
+ if (err < 0)
+ goto free_midi;

err =
snd_rawmidi_alloc_substreams(rmidi,
@@ -1571,19 +1569,20 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
->streams[SNDRV_RAWMIDI_STREAM_OUTPUT],
SNDRV_RAWMIDI_STREAM_OUTPUT,
output_count);
- if (err < 0) {
- snd_rawmidi_free(rmidi);
- return err;
- }
+ if (err < 0)
+ goto free_midi;

err = snd_device_new(card, SNDRV_DEV_RAWMIDI, rmidi, &ops);
- if (err < 0) {
- snd_rawmidi_free(rmidi);
- return err;
- }
+ if (err < 0)
+ goto free_midi;
+
if (rrawmidi)
*rrawmidi = rmidi;
return 0;
+
+free_midi:
+ snd_rawmidi_free(rmidi);
+ return err;
}
EXPORT_SYMBOL(snd_rawmidi_new);

--
2.15.0
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