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ALSA: emux: simplify snd_sf_list.callback handling

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Both drivers provide both sample_new and sample_free, and it makes no
sense to pretend that they could not. In fact, load_data() would already
crash if sample_new was null. So remove the remaining null checks.

Contrary to that, the emu10k1 driver actually has a null sample_reset,
though I'm not convinced that this inconsistency is justified.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Message-ID: <20240406064830.1029573-18-oswald.buddenhagen@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Oswald Buddenhagen 2024-04-06 08:48:30 +02:00 committed by Takashi Iwai
parent 62001ad1b4
commit 4c4cbe6682
2 changed files with 7 additions and 11 deletions
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6
sound/synth/emux/emux.c
View file

@ -94,10 +94,8 @@ int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, ch
/* create soundfont list */
memset(&sf_cb, 0, sizeof(sf_cb));
sf_cb.private_data = emu;
if (emu->ops.sample_new)
sf_cb.sample_new = sf_sample_new;
if (emu->ops.sample_free)
sf_cb.sample_free = sf_sample_free;
sf_cb.sample_new = sf_sample_new;
sf_cb.sample_free = sf_sample_free;
if (emu->ops.sample_reset)
sf_cb.sample_reset = sf_sample_reset;
emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);

12
sound/synth/emux/soundfont.c
View file

@ -1051,7 +1051,7 @@ load_guspatch(struct snd_sf_list *sflist, const char __user *data, long count)
/*
* load wave data
*/
if (smp->v.size > 0 && sflist->callback.sample_new) {
if (smp->v.size > 0) {
rc = sflist->callback.sample_new
(sflist->callback.private_data, smp, sflist->memhdr,
data, count);
@ -1416,9 +1416,8 @@ snd_sf_clear(struct snd_sf_list *sflist)
}
for (sp = sf->samples; sp; sp = nextsp) {
nextsp = sp->next;
if (sflist->callback.sample_free)
sflist->callback.sample_free(sflist->callback.private_data,
sp, sflist->memhdr);
sflist->callback.sample_free(sflist->callback.private_data,
sp, sflist->memhdr);
kfree(sp);
}
kfree(sf);
@ -1520,9 +1519,8 @@ snd_soundfont_remove_unlocked(struct snd_sf_list *sflist)
nextsp = sp->next;
sf->samples = nextsp;
sflist->mem_used -= sp->v.truesize;
if (sflist->callback.sample_free)
sflist->callback.sample_free(sflist->callback.private_data,
sp, sflist->memhdr);
sflist->callback.sample_free(sflist->callback.private_data,
sp, sflist->memhdr);
kfree(sp);
}
}