linux-kernel - [PATCH 3.12 109/111] W1: ds2490: Increase timeout when waiting for status

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Date:	Wed, 10 Jun 2015 17:27:38 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Alexander Stein <alexanders83@....de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 109/111] W1: ds2490: Increase timeout when waiting for status

From: Alexander Stein <alexanders83@....de>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit d25221525e0e2cfd70e4ec7216549c06609a8bd2 upstream.

Adjust the bulk message timeout to the other ones (1000ms). Otherwise the
following dmesg errors can be seen on a Raspberry Pi:
[   31.492386] Failed to read 1-wire data from 0x81: err=-110.
[   31.504168] 0x81: count=-110, status:
[   31.613404] Failed to read 1-wire data from 0x81: err=-110.
[   31.621915] 0x81: count=-110, status:
[   43.260968] Failed to read 1-wire data from 0x81: err=-110.
[   43.270998] 0x81: count=-110, status:
[   43.379959] Failed to read 1-wire data from 0x81: err=-110.
[   43.388854] 0x81: count=-110, status:

Signed-off-by: Alexander Stein <alexanders83@....de>
Acked-by: Evgeniy Polyakov <zbr@...emap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/w1/masters/ds2490.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/w1/masters/ds2490.c b/drivers/w1/masters/ds2490.c
index 4f7e1d770f81..dd8b116803d6 100644
--- a/drivers/w1/masters/ds2490.c
+++ b/drivers/w1/masters/ds2490.c
@@ -246,7 +246,7 @@ static int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st,
 	memset(st, 0, sizeof(*st));
 
 	count = 0;
-	err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_STATUS]), buf, size, &count, 100);
+	err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_STATUS]), buf, size, &count, 1000);
 	if (err < 0) {
 		printk(KERN_ERR "Failed to read 1-wire data from 0x%x: err=%d.\n", dev->ep[EP_STATUS], err);
 		return err;
-- 
2.4.2

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