@@ -1326,7 +1326,7 @@ static int snd_korg1212_copy_to(struct snd_pcm_substream *substream,
}
#endif
if (in_kernel)
- memcpy((void *)dst, src, size);
+ memcpy((__force void *)dst, src, size);
else if (copy_to_user(dst, src, size))
return -EFAULT;
src++;
@@ -1365,7 +1365,7 @@ static int snd_korg1212_copy_from(struct snd_pcm_substream *substream,
}
#endif
if (in_kernel)
- memcpy((void *)dst, src, size);
+ memcpy(dst, (__force void *)src, size);
else if (copy_from_user(dst, src, size))
return -EFAULT;
dst++;
The user-copy callbacks in korg1212 driver contain the explicit cast from a user pointer to a kernel pointer, but they missed __force prefix. It's mandatory for converting between them. Spotted by sparse, a warning like: sound/pci/korg1212/korg1212.c:1329:33: warning: cast removes address space of expression Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/korg1212/korg1212.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)