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(-)
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c index 4206ba44d8bb..4e189a93f475 100644 --- a/sound/pci/korg1212/korg1212.c +++ b/sound/pci/korg1212/korg1212.c @@ -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++;