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libertas: return errno from lbs_add_card()

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This makes the error handling somewhat cleaner -- lbs_add_card() does no
logner throw away the errno and lets its callers propagate it.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Lubomir Rintel 2018-10-07 02:33:27 +02:00 committed by Kalle Valo
parent 6528d88047
commit bbc2a101f0
5 changed files with 20 additions and 14 deletions
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4
drivers/net/wireless/marvell/libertas/if_cs.c
View File

@ -900,8 +900,8 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
/* Make this card known to the libertas driver */
priv = lbs_add_card(card, &p_dev->dev);
if (!priv) {
ret = -ENOMEM;
if (IS_ERR(priv)) {
ret = PTR_ERR(priv);
goto out2;
}

4
drivers/net/wireless/marvell/libertas/if_sdio.c
View File

@ -1206,8 +1206,8 @@ static int if_sdio_probe(struct sdio_func *func,
priv = lbs_add_card(card, &func->dev);
if (!priv) {
ret = -ENOMEM;
if (IS_ERR(priv)) {
ret = PTR_ERR(priv);
goto free;
}

4
drivers/net/wireless/marvell/libertas/if_spi.c
View File

@ -1146,8 +1146,8 @@ static int if_spi_probe(struct spi_device *spi)
* This will call alloc_etherdev.
*/
priv = lbs_add_card(card, &spi->dev);
if (!priv) {
err = -ENOMEM;
if (IS_ERR(priv)) {
err = PTR_ERR(priv);
goto free_card;
}
card->priv = priv;

5
drivers/net/wireless/marvell/libertas/if_usb.c
View File

@ -254,8 +254,11 @@ static int if_usb_probe(struct usb_interface *intf,
goto dealloc;
}
if (!(priv = lbs_add_card(cardp, &intf->dev)))
priv = lbs_add_card(cardp, &intf->dev);
if (IS_ERR(priv)) {
r = PTR_ERR(priv);
goto err_add_card;
}
cardp->priv = priv;

17
drivers/net/wireless/marvell/libertas/main.c
View File

@ -907,25 +907,29 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
struct net_device *dev;
struct wireless_dev *wdev;
struct lbs_private *priv = NULL;
int err;
/* Allocate an Ethernet device and register it */
wdev = lbs_cfg_alloc(dmdev);
if (IS_ERR(wdev)) {
err = PTR_ERR(wdev);
pr_err("cfg80211 init failed\n");
goto done;
goto err_cfg;
}
wdev->iftype = NL80211_IFTYPE_STATION;
priv = wdev_priv(wdev);
priv->wdev = wdev;
if (lbs_init_adapter(priv)) {
err = lbs_init_adapter(priv);
if (err) {
pr_err("failed to initialize adapter structure\n");
goto err_wdev;
}
dev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, ether_setup);
if (!dev) {
err = -ENOMEM;
dev_err(dmdev, "no memory for network device instance\n");
goto err_adapter;
}
@ -949,6 +953,7 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
init_waitqueue_head(&priv->waitq);
priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
if (IS_ERR(priv->main_thread)) {
err = PTR_ERR(priv->main_thread);
lbs_deb_thread("Error creating main thread.\n");
goto err_ndev;
}
@ -961,7 +966,7 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
priv->wol_gap = 20;
priv->ehs_remove_supported = true;
goto done;
return priv;
err_ndev:
free_netdev(dev);
@ -972,10 +977,8 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
err_wdev:
lbs_cfg_free(priv);
priv = NULL;
done:
return priv;
err_cfg:
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(lbs_add_card);