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ALSA: pcm_lib - fix xrun functionality

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The commit 4d96eb255c broke the interrupt
time xrun functionality (stream stop etc.) if the CONFIG_SND_PCM_XRUN_DEBUG
is not set. This is because the xrun() is null defined without it.

Fix this by letting the function xrun() to be always defined as it was
before.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jarkko Nikula 2010-03-26 16:07:25 +02:00 committed by Takashi Iwai
parent e1f7f02b45
commit 0f17014b34
1 changed files with 4 additions and 2 deletions
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6
sound/core/pcm_lib.c
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@ -148,6 +148,9 @@ static void pcm_debug_name(struct snd_pcm_substream *substream,
#define xrun_debug(substream, mask) \
((substream)->pstr->xrun_debug & (mask))
#else
#define xrun_debug(substream, mask) 0
#endif
#define dump_stack_on_xrun(substream) do { \
if (xrun_debug(substream, XRUN_DEBUG_STACK)) \
@ -169,6 +172,7 @@ static void xrun(struct snd_pcm_substream *substream)
}
}
#ifdef CONFIG_SND_PCM_XRUN_DEBUG
#define hw_ptr_error(substream, fmt, args...) \
do { \
if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { \
@ -255,8 +259,6 @@ static void xrun_log_show(struct snd_pcm_substream *substream)
#else /* ! CONFIG_SND_PCM_XRUN_DEBUG */
#define xrun_debug(substream, mask) 0
#define xrun(substream) do { } while (0)
#define hw_ptr_error(substream, fmt, args...) do { } while (0)
#define xrun_log(substream, pos) do { } while (0)
#define xrun_log_show(substream) do { } while (0)