[PATCH 1/13] ALSA: seq: Deletion of unnecessary checks before the function call "snd_midi_event_free

SF Markus Elfring
2015-01-04T12:50:10Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 3 Jan 2015 14:54:56 +0100

The snd_midi_event_free() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
sound/core/seq/oss/seq_oss_midi.c | 6 ++----
sound/core/seq/seq_midi.c | 3 +--
2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index 3a45696..e79cc44 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/sound/core/seq/oss/seq_oss_midi.c
@@ -237,8 +237,7 @@ snd_seq_oss_midi_check_exit_port(int client, int port)
spin_unlock_irqrestore(&register_lock, flags);
snd_use_lock_free(&mdev->use_lock);
snd_use_lock_sync(&mdev->use_lock);
- if (mdev->coder)
- snd_midi_event_free(mdev->coder);
+ snd_midi_event_free(mdev->coder);
kfree(mdev);
}
spin_lock_irqsave(&register_lock, flags);
@@ -265,8 +264,7 @@ snd_seq_oss_midi_clear_all(void)
spin_lock_irqsave(&register_lock, flags);
for (i = 0; i < max_midi_devs; i++) {
if ((mdev = midi_devs[i]) != NULL) {
- if (mdev->coder)
- snd_midi_event_free(mdev->coder);
+ snd_midi_event_free(mdev->coder);
kfree(mdev);
midi_devs[i] = NULL;
}
diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
index a1fd77a..68fec77 100644
--- a/sound/core/seq/seq_midi.c
+++ b/sound/core/seq/seq_midi.c
@@ -268,8 +268,7 @@ static void snd_seq_midisynth_delete(struct seq_midisynth *msynth)
snd_seq_event_port_detach(msynth->seq_client, msynth->seq_port);
}

- if (msynth->parser)
- snd_midi_event_free(msynth->parser);
+ snd_midi_event_free(msynth->parser);
}

/* register new midi synth port */
--
2.2.1