diff options
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index ec352c6ae49..d9d32629783 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -150,7 +150,14 @@ make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int direct, { u32 val; - val = (u32)(codec->addr & 0x0f) << 28; + if ((codec->addr & ~0xf) | (direct & ~1) | (nid & ~0x7f) | + (verb & ~0xfff) | (parm & ~0xff)) { + printk(KERN_ERR "hda-codec: out of range cmd %x:%x:%x:%x:%x\n", + codec->addr, direct, nid, verb, parm); + return ~0; + } + + val = (u32)codec->addr << 28; val |= (u32)direct << 27; val |= (u32)nid << 20; val |= verb << 8; @@ -167,6 +174,9 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, struct hda_bus *bus = codec->bus; int err; + if (cmd == ~0) + return -1; + if (res) *res = -1; again: |