From 337fe8dad58692ac468f4139ea19624ce464d953 Mon Sep 17 00:00:00 2001 From: Frank Schaefer Date: Thu, 8 Nov 2012 14:11:43 -0300 Subject: [PATCH] [media] em28xx: clear USB halt/stall condition in em28xx_init_usb_xfer when using bulk transfers MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit [mchehab@redhat.com: Fix a CodingStyle issue: don't break strings into separate lines] Signed-off-by: Frank Schäfer Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/em28xx/em28xx-core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c index d8a8e8b..6b3485d 100644 --- a/drivers/media/usb/em28xx/em28xx-core.c +++ b/drivers/media/usb/em28xx/em28xx-core.c @@ -1174,6 +1174,16 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, return rc; } + if (xfer_bulk) { + rc = usb_clear_halt(dev->udev, usb_bufs->urb[0]->pipe); + if (rc < 0) { + em28xx_err("failed to clear USB bulk endpoint stall/halt condition (error=%i)\n", + rc); + em28xx_uninit_usb_xfer(dev, mode); + return rc; + } + } + init_waitqueue_head(&dma_q->wq); init_waitqueue_head(&vbi_dma_q->wq); -- 2.7.4