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USB: cxacru: ignore error trying to start ADSL in atm_start 

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Simon Arlott 2007-05-10 23:04:13 -07:00 committed by Greg Kroah-Hartman
parent da1f82b554
commit fd209e35b7
1 changed files with 1 additions and 6 deletions
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7
drivers/usb/atm/cxacru.c
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@ -476,8 +476,6 @@ 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)
@ -671,11 +669,8 @@ 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);