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| author | Takashi Iwai <tiwai@suse.de> | 2017-08-22 15:44:45 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-08-22 15:44:45 +0200 |
| commit | 241bc82e62b28fdb7223b85180fd814f4963c971 (patch) | |
| tree | f0d1a3889fd027e017faa37fc34bffe2fa038c41 /sound/pci/emu10k1 | |
| parent | ALSA: firewire-motu: add support for MOTU Audio Express (diff) | |
| parent | ALSA: core: Fix unexpected error at replacing user TLV (diff) | |
| download | linux-241bc82e62b28fdb7223b85180fd814f4963c971.tar.xz linux-241bc82e62b28fdb7223b85180fd814f4963c971.zip | |
Merge branch 'for-linus' into for-next
Conflicts:
sound/core/control.c
Diffstat (limited to 'sound/pci/emu10k1')
| -rw-r--r-- | sound/pci/emu10k1/emufx.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index dc585959ca32..a2b56b188be4 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -698,10 +698,18 @@ static int copy_gctl(struct snd_emu10k1 *emu, { struct snd_emu10k1_fx8010_control_old_gpr __user *octl; - if (emu->support_tlv) - return copy_from_user(gctl, &_gctl[idx], sizeof(*gctl)); + if (emu->support_tlv) { + if (in_kernel) + memcpy(gctl, (void *)&_gctl[idx], sizeof(*gctl)); + else if (copy_from_user(gctl, &_gctl[idx], sizeof(*gctl))) + return -EFAULT; + return 0; + } + octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)_gctl; - if (copy_from_user(gctl, &octl[idx], sizeof(*octl))) + if (in_kernel) + memcpy(gctl, (void *)&octl[idx], sizeof(*octl)); + else if (copy_from_user(gctl, &octl[idx], sizeof(*octl))) return -EFAULT; gctl->tlv = NULL; return 0; |