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| author |   Andrey Shvetsov <andrey.shvetsov@k2l.de> | 2016-10-25 17:44:19 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-27 15:12:08 +0200 |
| commit | 1e80e19ce9c67b2fecce9068ad40d1e778faa58f (patch) | |
| tree | 6ba97fa32517726a7a4f38742e31b28318a96f58 /drivers/staging/most | |
| parent | Staging: media: davinci_vpfe: fix indentation issue in vpfe_video.c (diff) | |
| download | linux-dev-1e80e19ce9c67b2fecce9068ad40d1e778faa58f.tar.xz linux-dev-1e80e19ce9c67b2fecce9068ad40d1e778faa58f.zip | |
staging: most: aim-networking: keep channels closed if ndo_open fails
This patch stops all started channels whenever the function most_nd_open
returns an error. Additionally, it renames variable wait_res to ret for
the consistency.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most')
| -rw-r--r-- | drivers/staging/most/aim-network/networking.c | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/drivers/staging/most/aim-network/networking.c b/drivers/staging/most/aim-network/networking.c index fe0d516cf506..ce1764cba5f0 100644 --- a/drivers/staging/most/aim-network/networking.c +++ b/drivers/staging/most/aim-network/networking.c @@ -181,7 +181,7 @@ static int most_nd_set_mac_address(struct net_device *dev, void *p) static int most_nd_open(struct net_device *dev) { struct net_dev_context *nd = dev->ml_priv; - long wait_res; + long ret; netdev_info(dev, "open net device\n"); @@ -203,26 +203,30 @@ static int most_nd_open(struct net_device *dev) return -EBUSY; } - nd->channels_opened = true; - netif_wake_queue(dev); - - if (is_valid_ether_addr(dev->dev_addr)) - return 0; - - nd->iface->request_netinfo(nd->iface, nd->tx.ch_id); - wait_res = wait_for_completion_interruptible_timeout( - &nd->mac_compl, msecs_to_jiffies(5000)); - if (!wait_res) { - netdev_err(dev, "mac timeout\n"); - return -EBUSY; - } + if (!is_valid_ether_addr(dev->dev_addr)) { + nd->iface->request_netinfo(nd->iface, nd->tx.ch_id); + ret = wait_for_completion_interruptible_timeout( + &nd->mac_compl, msecs_to_jiffies(5000)); + if (!ret) { + netdev_err(dev, "mac timeout\n"); + ret = -EBUSY; + goto err; + } - if (wait_res < 0) { - netdev_warn(dev, "mac waiting interrupted\n"); - return wait_res; + if (ret < 0) { + netdev_warn(dev, "mac waiting interrupted\n"); + goto err; + } } + nd->channels_opened = true; + netif_wake_queue(dev); return 0; + +err: + most_stop_channel(nd->iface, nd->tx.ch_id, &aim); + most_stop_channel(nd->iface, nd->rx.ch_id, &aim); + return ret; } static int most_nd_stop(struct net_device *dev) |