This is a note to let you know that I've just added the patch titled ALSA: fm801: Initialize chip after IRQ handler is registered to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: alsa-fm801-initialize-chip-after-irq-handler-is-registered.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 610e1ae9b533be82b3aa118b907e0a703256913d Mon Sep 17 00:00:00 2001 From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Date: Sun, 16 Jul 2017 21:40:03 +0300 Subject: ALSA: fm801: Initialize chip after IRQ handler is registered MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> commit 610e1ae9b533be82b3aa118b907e0a703256913d upstream. The commit b56fa687e02b ("ALSA: fm801: detect FM-only card earlier") rearranged initialization calls, i.e. it makes snd_fm801_chip_init() to be called before we register interrupt handler and set PCI bus mastering. Somehow it prevents FM801-AU to work properly. Thus, partially revert initialization order changed by commit mentioned above. Fixes: b56fa687e02b ("ALSA: fm801: detect FM-only card earlier") Reported-by: Émeric MASCHINO <emeric.maschino@xxxxxxxxx> Tested-by: Émeric MASCHINO <emeric.maschino@xxxxxxxxx> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/pci/fm801.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -1235,8 +1235,6 @@ static int snd_fm801_create(struct snd_c } } - snd_fm801_chip_init(chip); - if ((chip->tea575x_tuner & TUNER_ONLY) == 0) { if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { @@ -1248,6 +1246,8 @@ static int snd_fm801_create(struct snd_c pci_set_master(pci); } + snd_fm801_chip_init(chip); + if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_fm801_free(chip); return err; Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are queue-4.9/alsa-fm801-initialize-chip-after-irq-handler-is-registered.patch