From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
alsa-devel@alsa-project.org
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH 3/13] ALSA: emu10k1: Delete an unnecessary check before the function call "kfree"
Date: Sun, 04 Jan 2015 13:55:41 +0100 [thread overview]
Message-ID: <54A9384D.4080302@users.sourceforge.net> (raw)
In-Reply-To: <54A9355F.4050102@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 3 Jan 2015 17:06:04 +0100
The kfree() 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/pci/emu10k1/p16v.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index b672755..3c60b43 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -166,11 +166,8 @@ static struct snd_pcm_hardware snd_p16v_capture_hw = {
static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
{
struct snd_emu10k1_pcm *epcm = runtime->private_data;
-
- if (epcm) {
- /* dev_dbg(emu->card->dev, "epcm free: %p\n", epcm); */
- kfree(epcm);
- }
+
+ kfree(epcm);
}
/* open_playback callback */
--
2.2.1
next prev parent reply other threads:[~2015-01-04 12:55 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5307CAA2.8060406@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6>
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[not found] ` <530A72AA.3000601@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402240658210.2090@localhost6.localdomain6>
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[not found] ` <alpine.DEB.2.10.1402251014170.2080@hadrien>
[not found] ` <530CD2C4.4050903@users.sourceforge.net>
[not found] ` <alpine.DEB.2.10.1402251840450.7035@hadrien>
[not found] ` <530CF8FF.8080600@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402252117150.2047@localhost6.localdomain6>
[not found] ` <530DD06F.4090703@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6>
[not found] ` <5317A59D.4@users.so urceforge.net>
[not found] ` <5317A59D.4@users.sourceforge.net>
2014-11-02 18:27 ` [PATCH 1/1] PCI: EMU10K1: Deletion of unnecessary checks before three function calls SF Markus Elfring
2014-11-03 9:45 ` Takashi Iwai
2014-11-03 14:10 ` [PATCH resent] ALSA: emu10k1: " SF Markus Elfring
2014-11-03 14:17 ` Takashi Iwai
2014-11-17 10:07 ` [PATCH 1/1] ALSA: hda: Deletion of unnecessary checks before two " SF Markus Elfring
2014-11-17 12:45 ` Takashi Iwai
2014-11-17 10:34 ` [PATCH 1/1] ALSA: ice17xx: Deletion of unnecessary checks before the function call "snd_ac97_resume" SF Markus Elfring
2014-11-17 12:46 ` Takashi Iwai
2014-11-17 11:48 ` [PATCH 1/1] ALSA: lola: Deletion of an unnecessary check before the function call "vfree" SF Markus Elfring
2014-11-17 12:46 ` Takashi Iwai
2014-11-17 12:12 ` [PATCH 1/1] ALSA: hdsp: Deletion of an unnecessary check before the function call "release_firmware" SF Markus Elfring
2014-11-17 12:47 ` Takashi Iwai
2014-11-17 12:41 ` [PATCH 1/1] ALSA: powermac: Deletion of an unnecessary check before the function call "pci_dev_put" SF Markus Elfring
2014-11-17 12:53 ` Takashi Iwai
2014-11-17 13:15 ` ASoC: omap-mcbsp: Deletion of an unnecessary check before the function call "kfree" SF Markus Elfring
2014-11-17 19:11 ` Jarkko Nikula
2014-11-18 9:40 ` Mark Brown
2014-11-21 17:40 ` [PATCH 1/1] ALSA: core: Deletion of unnecessary checks before two function calls SF Markus Elfring
2014-11-21 19:07 ` Takashi Iwai
2014-11-21 18:11 ` [PATCH 1/1] ALSA: es1688_lib: Deletion of an unnecessary check before the function call "release_and_free_resource" SF Markus Elfring
2014-11-21 19:08 ` Takashi Iwai
2014-11-21 18:35 ` [PATCH 1/1] ALSA: sb: Deletion of unnecessary checks before two function calls SF Markus Elfring
2014-11-21 19:08 ` Takashi Iwai
2014-12-02 13:41 ` [PATCH 1/1] ASoC: fsi: Deletion of unnecessary checks before the function call "clk_disable" SF Markus Elfring
2014-12-03 18:29 ` Mark Brown
2014-12-02 16:40 ` [PATCH 1/1] ASoC: mop500: Deletion of unnecessary checks before the function call "of_node_put" SF Markus Elfring
2014-12-03 18:30 ` Mark Brown
2014-12-03 18:31 ` Mark Brown
2014-12-02 17:11 ` [PATCH 1/1] ALSA: asihpi: Deletion of an unnecessary check before the function call "vfree" SF Markus Elfring
2014-12-02 17:39 ` Takashi Iwai
2014-12-02 17:38 ` [PATCH 1/1] ALSA: echoaudio: Deletion of a check before release_and_free_resource() SF Markus Elfring
2014-12-02 17:40 ` Takashi Iwai
2014-12-02 17:56 ` [PATCH 1/1] ALSA: trident: Deletion of a check before snd_util_memhdr_free() SF Markus Elfring
2014-12-02 19:11 ` Takashi Iwai
2014-12-02 20:50 ` [PATCH 0/2] ALSA: ctxfi: Delete an unnecessary check before kfree() SF Markus Elfring
2014-12-02 20:55 ` [PATCH 1/2] ALSA: ctxfi: Deletion of an unnecessary check before the function call "kfree" SF Markus Elfring
2014-12-02 21:07 ` Joe Perches
2014-12-02 21:00 ` [PATCH 2/2] ALSA: ctxfi: One function call less in get_daio_rsc() after error detection SF Markus Elfring
2014-12-03 6:51 ` [PATCH 0/2] ALSA: ctxfi: Delete an unnecessary check before kfree() Takashi Iwai
2014-12-03 11:38 ` SF Markus Elfring
2014-12-03 12:41 ` Takashi Iwai
2014-12-03 17:14 ` Joe Perches
2014-12-03 17:30 ` Takashi Iwai
2014-12-03 17:59 ` [PATCH] ALSA: ctxfi: Neaten get_daio_rsc Joe Perches
2014-12-03 19:31 ` Takashi Iwai
2014-12-02 21:55 ` [PATCH] ALSA: i2sbus: Deletion of unnecessary checks before the function call "release_and_free_resource" SF Markus Elfring
2014-12-03 6:59 ` Takashi Iwai
2015-01-04 12:43 ` [PATCH 0/13] ALSA: Deletion of some unnecessary checks SF Markus Elfring
2015-01-04 12:50 ` [PATCH 1/13] ALSA: seq: Deletion of unnecessary checks before the function call "snd_midi_event_free" SF Markus Elfring
2015-01-04 12:53 ` [PATCH 2/13] ALSA: oss: Deletion of unnecessary checks before the function call "vfree" SF Markus Elfring
2015-01-04 12:55 ` SF Markus Elfring [this message]
2015-01-04 13:00 ` [PATCH 4/13] ALSA: oxygen: Delete an unnecessary check before the function call "snd_pcm_suspend" SF Markus Elfring
2015-01-04 13:02 ` [PATCH 5/13] ALSA: emux: Delete an unnecessary check before the function call "snd_sf_free" SF Markus Elfring
2015-01-04 13:08 ` [PATCH 6/13] ASoC: Intel: Delete an unnecessary check before the function call "sst_dma_free" SF Markus Elfring
2015-01-05 14:35 ` Mark Brown
2015-01-05 15:18 ` Takashi Iwai
2015-01-05 18:22 ` Mark Brown
2015-01-05 19:02 ` Mark Brown
2015-01-04 13:11 ` [PATCH 7/13] ASoC: fsi: Deletion of unnecessary checks before the function call "clk_enable" SF Markus Elfring
2015-01-05 19:03 ` Mark Brown
2015-01-04 13:14 ` [PATCH 8/13] ASoC: Intel: Delete an unnecessary check before the function call "release_firmware" SF Markus Elfring
2015-01-05 19:03 ` Mark Brown
2015-01-04 13:21 ` [PATCH 9/13] ALSA: i2sbus: Delete an unnecessary check before the function call "snd_pcm_suspend_all" SF Markus Elfring
2015-01-04 13:28 ` [PATCH 10/13] ALSA: sb: Delete an unnecessary check before the function call "snd_emux_free" SF Markus Elfring
2015-01-04 13:36 ` [PATCH 11/13] ALSA: Deletion of checks before the function call "iounmap" SF Markus Elfring
2015-01-05 13:58 ` Dan Carpenter
2016-10-26 12:26 ` Dan Carpenter
2016-10-26 12:28 ` Johannes Berg
2016-10-26 12:42 ` Dan Carpenter
2015-01-04 13:38 ` [PATCH 12/13] ALSA: msnd: One function call less in snd_msnd_attach() after error detection SF Markus Elfring
2015-01-04 14:18 ` Takashi Iwai
2015-01-04 13:41 ` [PATCH 13/13] ALSA: msnd: Fix centralized exiting from snd_msnd_attach() SF Markus Elfring
2015-01-04 14:22 ` [PATCH 0/13] ALSA: Deletion of some unnecessary checks Takashi Iwai
2015-06-28 9:21 ` [PATCH] ALSA: hda: Delete an unnecessary check before the function call "snd_info_free_entry" SF Markus Elfring
2015-06-29 9:03 ` Takashi Iwai
2015-07-08 19:31 ` [PATCH] ALSA: hda: Delete an unnecessary check before the function call "kobject_put" SF Markus Elfring
2015-07-09 12:21 ` Takashi Iwai
2016-07-22 17:07 ` [PATCH] ASoC: Intel: Skylake: Delete an unnecessary check before the function call "release_firmware" SF Markus Elfring
2016-07-24 21:06 ` Applied "ASoC: Intel: Skylake: Delete an unnecessary check before the function call "release_firmware"" to the asoc tree Mark Brown
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