From: Geoffrey D. Bennett g@b4.vu
commit 764fa6e686e0107c0357a988d193de04cf047583 upstream.
Use usb_rcvctrlpipe() not usb_sndctrlpipe() for USB control input in the Scarlett Gen 2 mixer driver. This fixes the device hang during initialisation when used with the ehci-pci host driver.
Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Signed-off-by: Geoffrey D. Bennett g@b4.vu Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/66a3d05dac325d5b53e4930578e143cef1f50dbe.162158456... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/usb/mixer_scarlett_gen2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -635,7 +635,7 @@ static int scarlett2_usb( /* send a second message to get the response */
err = snd_usb_ctl_msg(mixer->chip->dev, - usb_sndctrlpipe(mixer->chip->dev, 0), + usb_rcvctrlpipe(mixer->chip->dev, 0), SCARLETT2_USB_VENDOR_SPECIFIC_CMD_RESP, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 0,