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[ALSA] emu10k1 - Minor clean up of memory block handling 

Modules: EMU10K1/EMU10K2 driver

Minor clean up of emu10k1 memory block allocation.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 10:44:51 +01:00 committed by Jaroslav Kysela
parent 89173bd414
commit e017fa5772
1 changed files with 8 additions and 6 deletions
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14
sound/pci/emu10k1/emupcm.c
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@ -405,15 +405,17 @@ static int snd_emu10k1_playback_hw_params(snd_pcm_substream_t * substream,
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
return err;
if (err > 0) { /* change */
snd_util_memblk_t *memblk;
int mapped;
if (epcm->memblk != NULL)
snd_emu10k1_free_pages(emu, epcm->memblk);
memblk = snd_emu10k1_alloc_pages(emu, substream);
if ((epcm->memblk = memblk) == NULL || ((emu10k1_memblk_t *)memblk)->mapped_page < 0) {
epcm->start_addr = 0;
epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
epcm->start_addr = 0;
if (! epcm->memblk)
return -ENOMEM;
}
epcm->start_addr = ((emu10k1_memblk_t *)memblk)->mapped_page << PAGE_SHIFT;
mapped = ((emu10k1_memblk_t *)epcm->memblk)->mapped_page;
if (mapped < 0)
return -ENOMEM;
epcm->start_addr = mapped << PAGE_SHIFT;
}
return 0;
}