[ALSA] Fix compilation on 32bit arch
ALSA<-OSS emulation
Fix the division with int64 for 32bit architectures.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 131522e..468fca8 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -129,7 +129,16 @@
long bytes = frames_to_bytes(runtime, frames);
if (buffer_size == runtime->oss.buffer_bytes)
return bytes;
- return (long)(((int64_t)runtime->oss.buffer_bytes * (int64_t)bytes) / (int64_t)buffer_size);
+#if BITS_PER_LONG >= 64
+ return runtime->oss.buffer_bytes * bytes / buffer_size;
+#else
+ {
+ u64 bsize = (u64)runtime->oss.buffer_bytes * (u64)bytes;
+ u32 rem;
+ div64_32(&bsize, buffer_size, &rem);
+ return (long)bsize;
+ }
+#endif
}
static long snd_pcm_alsa_frames(snd_pcm_substream_t *substream, long bytes)