[PATCH 2/2] cxacru: Ignore error trying to start ADSL in atm_start

[Simon Arlott <simon@fire.lp0.eu>]

The sysfs adsl_status attribute ignores (aside from returning -EIO to the 
user) any error sending a START/STOP command to the device and there is 
at least one firmware which never sends a response but appears to work 
regardless. Therefore atm_start should also continue if an error is 
received so that such firmware is usable.

The official Conexant driver doesn't expect a reply either but this is 
for another device (E2 router) and a commonly used firmware does respond.

Also, there is no point in changing -ECONNRESET to -ETIMEDOUT since 
nothing ever checks for either of these values.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
---
drivers/usb/atm/cxacru.c |    7 +------
1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 4ecb4c7..32f85a6 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -465,8 +465,6 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
	add_timer(&timer);
	wait_for_completion(done);
	status = urb->status;
-	if (status == -ECONNRESET)
-		status = -ETIMEDOUT;
	del_timer_sync(&timer);

	if (actual_length)
@@ -660,11 +658,8 @@ static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
	/* start ADSL */
	mutex_lock(&instance->adsl_state_serialize);
	ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
-	if (ret < 0) {
+	if (ret < 0)
		atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret);
-		mutex_unlock(&instance->adsl_state_serialize);
-		return ret;
-	}

	/* Start status polling */
	mutex_lock(&instance->poll_state_serialize);
--
1.5.0.1

--
Simon Arlott
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/