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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-03-07 13:24:30 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-03-08 13:00:09 +0100 |
| commit | 0e82e5fa97614c9ca3efca5f8dca69dffd1c0ec0 (patch) | |
| tree | 697955215071627ca3209ec51cde532b53a5973d /sound | |
| parent | 7c7335877105364f7f5181e80ff34206b54be81f (diff) | |
| download | linux-3.10-0e82e5fa97614c9ca3efca5f8dca69dffd1c0ec0.tar.gz linux-3.10-0e82e5fa97614c9ca3efca5f8dca69dffd1c0ec0.tar.bz2 linux-3.10-0e82e5fa97614c9ca3efca5f8dca69dffd1c0ec0.zip | |
ALSA: control: clean up snd_ctl_hole_check()
The return value of snd_ctl_hole_check() is used only to detect whether
to continue the loop in snd_ctl_find_hole() or not, so we can simplify
the code by changing this return type to a boolean. Also rename this
function to better show what it actually does.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/control.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index d1b5ce818a4..dc4afa6f99b 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -279,31 +279,31 @@ void snd_ctl_free_one(struct snd_kcontrol *kcontrol) EXPORT_SYMBOL(snd_ctl_free_one); -static unsigned int snd_ctl_hole_check(struct snd_card *card, - unsigned int count) +static bool snd_ctl_remove_numid_conflict(struct snd_card *card, + unsigned int count) { struct snd_kcontrol *kctl; list_for_each_entry(kctl, &card->controls, list) { if (kctl->id.numid < card->last_numid + 1 + count && - kctl->id.numid + kctl->count > card->last_numid + 1) - return card->last_numid = kctl->id.numid + kctl->count - 1; + kctl->id.numid + kctl->count > card->last_numid + 1) { + card->last_numid = kctl->id.numid + kctl->count - 1; + return true; + } } - return card->last_numid; + return false; } static int snd_ctl_find_hole(struct snd_card *card, unsigned int count) { - unsigned int last_numid, iter = 100000; + unsigned int iter = 100000; - last_numid = card->last_numid; - while (last_numid != snd_ctl_hole_check(card, count)) { + while (snd_ctl_remove_numid_conflict(card, count)) { if (--iter == 0) { /* this situation is very unlikely */ snd_printk(KERN_ERR "unable to allocate new control numid\n"); return -ENOMEM; } - last_numid = card->last_numid; } return 0; } |