commit 57dca36ee25bcab20a71705175c00b6f114cdab4
author Markus Elfring <elfring@users.sourceforge.net> Sat Jan 03 14:54:56 2015 +0100
committer Takashi Iwai <tiwai@suse.de> Sun Jan 04 15:11:05 2015 +0100
tree c3c6ee752a87305b99d0e6b4b5f03adc19aee41a
parent adc2ae0bb6daa2287d1a6567d18be01da546f7a7

ALSA: seq: Deletion of unnecessary checks before the function call "snd_midi_event_free"

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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/seq/oss/seq_oss_midi.c

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 @@
 		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 @@
 	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;
 		}

sound/core/seq/seq_midi.c

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 @@
 		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 */