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Commit 95a48b7d authored by Takashi Iwai's avatar Takashi Iwai
Browse files

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: 68541213 ("ALSA: pcm: Direct in-kernel read/write support")
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 00966dcd

include/sound/pcm.h

+2 −2
Original line number Diff line number Diff line
@@ -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