[PATCH 1/1] ALSA: sb: Deletion of unnecessary checks before two function calls

SF Markus Elfring
2014-11-21T18:35:37Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 21 Nov 2014 19:32:02 +0100

The functions release_and_free_resource() and snd_util_memhdr_free() test
whether their argument is NULL and then return 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/isa/sb/emu8000_synth.c | 3 +--
sound/isa/sb/sb_common.c | 3 +--
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
index 4e3fcfb..95b39be 100644
--- a/sound/isa/sb/emu8000_synth.c
+++ b/sound/isa/sb/emu8000_synth.c
@@ -105,8 +105,7 @@ static int snd_emu8000_delete_device(struct snd_seq_device *dev)
snd_device_free(dev->card, hw->pcm);
if (hw->emu)
snd_emux_free(hw->emu);
- if (hw->memhdr)
- snd_util_memhdr_free(hw->memhdr);
+ snd_util_memhdr_free(hw->memhdr);
hw->emu = NULL;
hw->memhdr = NULL;
return 0;
diff --git a/sound/isa/sb/sb_common.c b/sound/isa/sb/sb_common.c
index 3ef9906..f22b448 100644
--- a/sound/isa/sb/sb_common.c
+++ b/sound/isa/sb/sb_common.c
@@ -184,8 +184,7 @@ static int snd_sbdsp_probe(struct snd_sb * chip)

static int snd_sbdsp_free(struct snd_sb *chip)
{
- if (chip->res_port)
- release_and_free_resource(chip->res_port);
+ release_and_free_resource(chip->res_port);
if (chip->irq >= 0)
free_irq(chip->irq, (void *) chip);
#ifdef CONFIG_ISA
--
2.1.3