[PATCH v2 11/11] ALSA: remove calls to usb_pipe_type_check for control endpoints

Greg Kroah-Hartman
2020-09-07T15:53:42Z

A USB device will always haev a bi-directional endpoint 0, that's just
how the devices work, so no need to check for that in a few quirk tests
as it will always pass.

Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Alexander Tsoy <alexander@tsoy.me>
Cc: alsa-devel@alsa-project.org
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
v2:
- new patch, was not in v1 series, suggested by Alan.

sound/usb/quirks.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index fc3aab04a0bc..35da4aa918c7 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -875,8 +875,6 @@ static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
{
int ret;

- if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0)))
- return -EINVAL;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 0, NULL, 0, 1000);
@@ -984,8 +982,6 @@ static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)

dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");

- if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0)))
- return -EINVAL;
/* If the Axe-Fx III has not fully booted, it will timeout when trying
* to enable the audio streaming interface. A more generous timeout is
* used here to detect when the Axe-Fx III has finished booting as the
@@ -1117,8 +1113,6 @@ static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
{
int ret;

- if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0)))
- return -EINVAL;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0, 0, NULL, 0, 1000);
--
2.28.0