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Commit 740eb835 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[ALSA] oxygen: use uintptr_t in pointer casts 



When we store the DMA channel number in the substream's private_data
pointer, use uintptr_t as an intermediate step when casting from/to
unsigned int to prevent the compiler from whining when the pointer size
is different.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 93521d27

sound/pci/oxygen/oxygen_pcm.c

+13 −7
Original line number Diff line number Diff line
@@ -168,6 +168,12 @@ static struct snd_pcm_hardware oxygen_hardware[PCM_COUNT] = { 
	},

};



static inline unsigned int

oxygen_substream_channel(struct snd_pcm_substream *substream)

{

	return (unsigned int)(uintptr_t)substream->runtime->private_data;

}



static int oxygen_open(struct snd_pcm_substream *substream,

		       unsigned int channel)

{
@@ -175,7 +181,7 @@ static int oxygen_open(struct snd_pcm_substream *substream, 
	struct snd_pcm_runtime *runtime = substream->runtime;

	int err;



	runtime->private_data = (void *)channel;

	runtime->private_data = (void *)(uintptr_t)channel;

	runtime->hw = oxygen_hardware[channel];

	err = snd_pcm_hw_constraint_step(runtime, 0,

					 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
@@ -248,7 +254,7 @@ static int oxygen_ac97_open(struct snd_pcm_substream *substream) 
static int oxygen_close(struct snd_pcm_substream *substream)

{

	struct oxygen *chip = snd_pcm_substream_chip(substream);

	unsigned int channel = (unsigned int)substream->runtime->private_data;

	unsigned int channel = oxygen_substream_channel(substream);



	mutex_lock(&chip->mutex);

	chip->pcm_active &= ~(1 << channel);
@@ -337,7 +343,7 @@ static int oxygen_hw_params(struct snd_pcm_substream *substream, 
			    struct snd_pcm_hw_params *hw_params)

{

	struct oxygen *chip = snd_pcm_substream_chip(substream);

	unsigned int channel = (unsigned int)substream->runtime->private_data;

	unsigned int channel = oxygen_substream_channel(substream);

	int err;



	err = snd_pcm_lib_malloc_pages(substream,
@@ -516,7 +522,7 @@ static int oxygen_ac97_hw_params(struct snd_pcm_substream *substream, 
static int oxygen_hw_free(struct snd_pcm_substream *substream)

{

	struct oxygen *chip = snd_pcm_substream_chip(substream);

	unsigned int channel = (unsigned int)substream->runtime->private_data;

	unsigned int channel = oxygen_substream_channel(substream);



	spin_lock_irq(&chip->reg_lock);

	chip->interrupt_mask &= ~(1 << channel);
@@ -540,7 +546,7 @@ static int oxygen_spdif_hw_free(struct snd_pcm_substream *substream) 
static int oxygen_prepare(struct snd_pcm_substream *substream)

{

	struct oxygen *chip = snd_pcm_substream_chip(substream);

	unsigned int channel = (unsigned int)substream->runtime->private_data;

	unsigned int channel = oxygen_substream_channel(substream);

	unsigned int channel_mask = 1 << channel;



	spin_lock_irq(&chip->reg_lock);
@@ -575,7 +581,7 @@ static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd) 


	snd_pcm_group_for_each_entry(s, substream) {

		if (snd_pcm_substream_chip(s) == chip) {

			mask |= 1 << (unsigned int)s->runtime->private_data;

			mask |= 1 << oxygen_substream_channel(s);

			snd_pcm_trigger_done(s, substream);

		}

	}
@@ -594,7 +600,7 @@ static snd_pcm_uframes_t oxygen_pointer(struct snd_pcm_substream *substream) 
{

	struct oxygen *chip = snd_pcm_substream_chip(substream);

	struct snd_pcm_runtime *runtime = substream->runtime;

	unsigned int channel = (unsigned int)runtime->private_data;

	unsigned int channel = oxygen_substream_channel(substream);

	u32 curr_addr;



	/* no spinlock, this read should be atomic */