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| author | Jesper Juhl <juhl-lkml@dif.dk> | 2005-05-30 17:30:32 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-06-22 12:27:43 +0200 |
| commit | 4d572776d4dfa2d5385a2ec3acec3cc059149e13 (patch) | |
| tree | b25ff1baa8d106561d9f07045bbfea6ac330c714 /sound/core | |
| parent | 6fd8b87f0e1e5de436ba020bd5806fe9ad738269 (diff) | |
| download | op-kernel-dev-4d572776d4dfa2d5385a2ec3acec3cc059149e13.zip op-kernel-dev-4d572776d4dfa2d5385a2ec3acec3cc059149e13.tar.gz | |
[ALSA] Remove redundant NULL checks before kfree
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>
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/seq/oss/seq_oss_synth.c | 24 | ||||
| -rw-r--r-- | sound/core/seq/seq_dummy.c | 5 | ||||
| -rw-r--r-- | sound/core/timer.c | 12 |
3 files changed, 13 insertions, 28 deletions
diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index 638cc14..1a7736c 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -325,14 +325,10 @@ snd_seq_oss_synth_cleanup(seq_oss_devinfo_t *dp) } snd_use_lock_free(&rec->use_lock); } - if (info->sysex) { - kfree(info->sysex); - info->sysex = NULL; - } - if (info->ch) { - kfree(info->ch); - info->ch = NULL; - } + kfree(info->sysex); + info->sysex = NULL; + kfree(info->ch); + info->ch = NULL; } dp->synth_opened = 0; dp->max_synthdev = 0; @@ -418,14 +414,10 @@ snd_seq_oss_synth_reset(seq_oss_devinfo_t *dp, int dev) dp->file_mode) < 0) { midi_synth_dev.opened--; info->opened = 0; - if (info->sysex) { - kfree(info->sysex); - info->sysex = NULL; - } - if (info->ch) { - kfree(info->ch); - info->ch = NULL; - } + kfree(info->sysex); + info->sysex = NULL; + kfree(info->ch); + info->ch = NULL; } return; } diff --git a/sound/core/seq/seq_dummy.c b/sound/core/seq/seq_dummy.c index e88967c..ea945a5 100644 --- a/sound/core/seq/seq_dummy.c +++ b/sound/core/seq/seq_dummy.c @@ -140,10 +140,7 @@ dummy_input(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int static void dummy_free(void *private_data) { - snd_seq_dummy_port_t *p; - - p = private_data; - kfree(p); + kfree(private_data); } /* diff --git a/sound/core/timer.c b/sound/core/timer.c index d67a5e9..b498e54 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1469,14 +1469,10 @@ static int snd_timer_user_tselect(struct file *file, snd_timer_select_t __user * if ((err = snd_timer_open(&tu->timeri, str, &tselect.id, current->pid)) < 0) goto __err; - if (tu->queue) { - kfree(tu->queue); - tu->queue = NULL; - } - if (tu->tqueue) { - kfree(tu->tqueue); - tu->tqueue = NULL; - } + kfree(tu->queue); + tu->queue = NULL; + kfree(tu->tqueue); + tu->tqueue = NULL; if (tu->tread) { tu->tqueue = (snd_timer_tread_t *)kmalloc(tu->queue_size * sizeof(snd_timer_tread_t), GFP_KERNEL); if (tu->tqueue == NULL) |
