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ASoC: ab8500: Fix invalid cast to long pointer

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Don't cast to long pointers blindly just for using find_first_bit()
and co.  This is certainly not portable at all.

Reimplement the code with ffs() and fls() instead.  This is a slight
optimization, too.

Spotted by coverity CID 1056484 and 1056485.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Takashi Iwai 2013-10-30 08:35:01 +01:00 committed by Mark Brown
parent 00ecdd93a8
commit 166a34d27f
1 changed files with 6 additions and 6 deletions
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12
sound/soc/codecs/ab8500-codec.c
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@ -2295,17 +2295,17 @@ static int ab8500_codec_set_dai_tdm_slot(struct snd_soc_dai *dai,
case 0:
break;
case 1:
slot = find_first_bit((unsigned long *)&tx_mask, 32);
slot = ffs(tx_mask);
snd_soc_update_bits(codec, AB8500_DASLOTCONF1, mask, slot);
snd_soc_update_bits(codec, AB8500_DASLOTCONF3, mask, slot);
snd_soc_update_bits(codec, AB8500_DASLOTCONF2, mask, slot);
snd_soc_update_bits(codec, AB8500_DASLOTCONF4, mask, slot);
break;
case 2:
slot = find_first_bit((unsigned long *)&tx_mask, 32);
slot = ffs(tx_mask);
snd_soc_update_bits(codec, AB8500_DASLOTCONF1, mask, slot);
snd_soc_update_bits(codec, AB8500_DASLOTCONF3, mask, slot);
slot = find_next_bit((unsigned long *)&tx_mask, 32, slot + 1);
slot = fls(tx_mask);
snd_soc_update_bits(codec, AB8500_DASLOTCONF2, mask, slot);
snd_soc_update_bits(codec, AB8500_DASLOTCONF4, mask, slot);
break;
@ -2336,18 +2336,18 @@ static int ab8500_codec_set_dai_tdm_slot(struct snd_soc_dai *dai,
case 0:
break;
case 1:
slot = find_first_bit((unsigned long *)&rx_mask, 32);
slot = ffs(rx_mask);
snd_soc_update_bits(codec, AB8500_ADSLOTSEL(slot),
AB8500_MASK_SLOT(slot),
AB8500_ADSLOTSELX_AD_OUT_TO_SLOT(AB8500_AD_OUT3, slot));
break;
case 2:
slot = find_first_bit((unsigned long *)&rx_mask, 32);
slot = ffs(rx_mask);
snd_soc_update_bits(codec,
AB8500_ADSLOTSEL(slot),
AB8500_MASK_SLOT(slot),
AB8500_ADSLOTSELX_AD_OUT_TO_SLOT(AB8500_AD_OUT3, slot));
slot = find_next_bit((unsigned long *)&rx_mask, 32, slot + 1);
slot = fls(rx_mask);
snd_soc_update_bits(codec,
AB8500_ADSLOTSEL(slot),
AB8500_MASK_SLOT(slot),