| commit | 158e1886b6262c1d1c96a18c85fac5219b8bf804 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Tue Nov 03 13:18:07 2020 +0300 |
| committer | Takashi Iwai <tiwai@suse.de> | Tue Nov 03 14:11:38 2020 +0100 |
| tree | 40fa0b6e57fdec473c785892a4e938e04d3192d2 | |
| parent | 9fc149c3bce7bdbb94948a8e6bd025e3b3538603 [diff] |
ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link()
This is harmless, but the "addr" comes from the user and it could lead
to a negative shift or to shift wrapping if it's too high.
Fixes: 0b00a5615dc4 ("ALSA: hdac_ext: add hdac extended controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20201103101807.GC1127762@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>