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[ALSA] Remove redundant NULL checks before kfree

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Timer Midlevel,ALSA sequencer,ALSA<-OSS sequencer,Digigram VX core
I2C tea6330t,GUS Library,VIA82xx driver,VIA82xx-modem driver
CA0106 driver,CS46xx driver,EMU10K1/EMU10K2 driver,YMFPCI driver
Digigram VX Pocket driver,Common EMU synth,USB generic driver,USB USX2Y
Checking a pointer for NULL before calling kfree() on it is redundant,
kfree() deals with NULL pointers just fine.
This patch removes such checks from sound/

This patch also makes another, but closely related, change.
It avoids casting pointers about to be kfree()'ed.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jesper Juhl
2005-05-30 17:30:32 +02:00
committed by Jaroslav Kysela
parent 6fd8b87f0e
commit 4d572776d4
18 changed files with 39 additions and 87 deletions
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5
sound/pci/emu10k1/emu10k1x.c
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@@ -361,10 +361,7 @@ static void snd_emu10k1x_gpio_write(emu10k1x_t *emu, unsigned int value)
static void snd_emu10k1x_pcm_free_substream(snd_pcm_runtime_t *runtime)
{
emu10k1x_pcm_t *epcm = runtime->private_data;
if (epcm)
kfree(epcm);
kfree(runtime->private_data);
}
static void snd_emu10k1x_pcm_interrupt(emu10k1x_t *emu, emu10k1x_voice_t *voice)