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Message-ID: <1412239495.32060.8.camel@linux-0dmf.site>
Date: Thu, 02 Oct 2014 10:44:55 +0200
From: Oliver Neukum <oneukum@...e.de>
To: Hayes Wang <hayeswang@...ltek.com>
Cc: netdev@...r.kernel.org, nic_swsd@...ltek.com,
linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH net] r8152: autoresume before setting MAC address
On Thu, 2014-10-02 at 16:26 +0800, Hayes Wang wrote:
> Resume the device before setting the MAC address.
>
> Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
> ---
> drivers/net/usb/r8152.c | 16 +++++++++++++---
> 1 file changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index 604ef21..e823358 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -1007,9 +1007,16 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
> {
> struct r8152 *tp = netdev_priv(netdev);
> struct sockaddr *addr = p;
> + int ret;
> +
> + ret = usb_autopm_get_interface(tp->intf);
> + if (ret < 0)
> + goto out1;
>
> - if (!is_valid_ether_addr(addr->sa_data))
> - return -EADDRNOTAVAIL;
It would be more legant to check validity before you do
the pm operation. Error handling would be simpler.
Regards
Oliver
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