lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[ALSA] Remove redundant NULL checks before kfree

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

6
sound/usb/usbmixer.c
View File

@@ -623,10 +623,8 @@ static struct usb_feature_control_info audio_feature_info[] = {
/* private_free callback */
static void usb_mixer_elem_free(snd_kcontrol_t *kctl)
{
if (kctl->private_data) {
kfree(kctl->private_data);
kctl->private_data = NULL;
}
kfree(kctl->private_data);
kctl->private_data = NULL;
}