3.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Dylan Reid <[email protected]> commit f70eecde3bca92630d3886496e73316ff353f185 upstream. If cs_automic is called twice (like it is during init) while the mic is present, it will over-write the last_input with the new one, causing it to switch back to the automic input when the mic is unplugged. This leaves the driver in a state (cur_input, last_input, and automix_idx the same) where the internal mic can not be selected until it is rebooted without the mic attached. Check that the mic hasn't already been switched to before setting last_input. Signed-off-by: Dylan Reid <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- sound/pci/hda/patch_cirrus.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -976,8 +976,10 @@ static void cs_automic(struct hda_codec /* specific to CS421x, single ADC */ if (spec->vendor_nid == CS421X_VENDOR_NID) { if (present) { - spec->last_input = spec->cur_input; - spec->cur_input = spec->automic_idx; + if (spec->cur_input != spec->automic_idx) { + spec->last_input = spec->cur_input; + spec->cur_input = spec->automic_idx; + } } else { spec->cur_input = spec->last_input; } -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
