linux-kernel - [PATCH 3.16 071/212] W1: ds2490: Increase timeout when waiting for status

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Date:   Thu, 01 Jun 2017 16:43:16 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Alexander Stein" <alexanders83@....de>,
        "Evgeniy Polyakov" <zbr@...emap.net>
Subject: [PATCH 3.16 071/212] W1: ds2490: Increase timeout when waiting
 for status

3.16.44-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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

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: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/w1/masters/ds2490.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/w1/masters/ds2490.c
+++ b/drivers/w1/masters/ds2490.c
@@ -253,7 +253,7 @@ static int ds_recv_status_nodump(struct
 
 	count = 0;
 	err = usb_interrupt_msg(dev->udev, usb_rcvintpipe(dev->udev,
-		dev->ep[EP_STATUS]), buf, size, &count, 100);
+		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;