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authorTakashi Iwai <tiwai@suse.de>2018-07-25 23:00:54 +0200
committerTakashi Iwai <tiwai@suse.de>2018-07-26 08:32:13 +0200
commit95a48b7d4459948b6bacf809809cf01a7dc06d1d (patch)
tree1825a1e77dced4a132ac10c442d397c7d9522650 /include/sound/pcm.h
parent00966dcdf0e324e10ab79d505732c339f72417d9 (diff)
downloadlinux-95a48b7d4459948b6bacf809809cf01a7dc06d1d.tar.bz2
ALSA: pcm: Add __force to cast in snd_pcm_lib_read/write()
The snd_pcm_lib_read() and snd_pcm_lib_write() inline functions have the explicit cast from a user pointer to a kernel pointer, but they lacks of __force prefix. This fixes sparse warnings like: ./include/sound/pcm.h:1093:47: warning: cast removes address space of expression Fixes: 68541213720d ("ALSA: pcm: Direct in-kernel read/write support") Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
-rw-r--r--include/sound/pcm.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 1206045ccf03..d6bd3caf6878 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1090,14 +1090,14 @@ static inline snd_pcm_sframes_t
snd_pcm_lib_write(struct snd_pcm_substream *substream,
const void __user *buf, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_xfer(substream, (void *)buf, true, frames, false);
+ return __snd_pcm_lib_xfer(substream, (void __force *)buf, true, frames, false);
}
static inline snd_pcm_sframes_t
snd_pcm_lib_read(struct snd_pcm_substream *substream,
void __user *buf, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_xfer(substream, (void *)buf, true, frames, false);
+ return __snd_pcm_lib_xfer(substream, (void __force *)buf, true, frames, false);
}
static inline snd_pcm_sframes_t