Now that each codec will have its own module, it is possible for the user to load one codec while another one is running. So cmd_mutex would be a safe addition to probe_codec(). Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx> --- sound/pci/hda/hda_intel.c | 2 ++ 1 file changed, 2 insertions(+) --- sound-2.6.orig/sound/pci/hda/hda_intel.c +++ sound-2.6/sound/pci/hda/hda_intel.c @@ -1282,10 +1282,12 @@ static int probe_codec(struct azx *chip, (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; unsigned int res; + mutex_lock(&chip->bus->cmd_mutex); chip->probing = 1; azx_send_cmd(chip->bus, cmd); res = azx_get_response(chip->bus, addr); chip->probing = 0; + mutex_unlock(&chip->bus->cmd_mutex); if (res == -1) return -EIO; snd_printdd(SFX "codec #%d probed OK\n", addr); _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
