ALSA: usb-audio: scarlett2: Fix device hang with ehci-pci

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.1621584566.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 560c2ad..dcff3e3 100644 (file)
--- 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,