* [PATCH 4/4] fec_mpc52xx: fix error path
@ 2010-07-08 12:10 ` Kulikov Vasiliy
0 siblings, 0 replies; 4+ messages in thread
From: Kulikov Vasiliy @ 2010-07-08 12:10 UTC (permalink / raw)
To: Kernel Janitors
Cc: David S. Miller, Grant Likely, Jiri Pirko, Eric Dumazet,
Sean MacLennan, netdev
Error path in mpc52xx_fec_probe() is broken.
We must free everything that we've allocated.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
---
drivers/net/fec_mpc52xx.c | 38 +++++++++++++++++---------------------
1 files changed, 17 insertions(+), 21 deletions(-)
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index 25e6cc6..5f83463 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -875,17 +875,21 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (rv) {
printk(KERN_ERR DRIVER_NAME ": "
"Error while parsing device node resource\n" );
- return rv;
+ goto err_netdev;
}
if ((mem.end - mem.start + 1) < sizeof(struct mpc52xx_fec)) {
printk(KERN_ERR DRIVER_NAME
" - invalid resource size (%lx < %x), check mpc52xx_devices.c\n",
(unsigned long)(mem.end - mem.start + 1), sizeof(struct mpc52xx_fec));
- return -EINVAL;
+ rv = -EINVAL;
+ goto err_netdev;
}
- if (!request_mem_region(mem.start, sizeof(struct mpc52xx_fec), DRIVER_NAME))
- return -EBUSY;
+ if (!request_mem_region(mem.start, sizeof(struct mpc52xx_fec),
+ DRIVER_NAME)) {
+ rv = -EBUSY;
+ goto err_netdev;
+ }
/* Init ether ndev with what we have */
ndev->netdev_ops = &mpc52xx_fec_netdev_ops;
@@ -901,7 +905,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (!priv->fec) {
rv = -ENOMEM;
- goto probe_error;
+ goto err_mem_region;
}
/* Bestcomm init */
@@ -914,7 +918,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (!priv->rx_dmatsk || !priv->tx_dmatsk) {
printk(KERN_ERR DRIVER_NAME ": Can not init SDMA tasks\n" );
rv = -ENOMEM;
- goto probe_error;
+ goto err_rx_tx_dmatsk;
}
/* Get the IRQ we need one by one */
@@ -966,33 +970,25 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
rv = register_netdev(ndev);
if (rv < 0)
- goto probe_error;
+ goto err_node;
/* We're done ! */
dev_set_drvdata(&op->dev, ndev);
return 0;
-
- /* Error handling - free everything that might be allocated */
-probe_error:
-
- if (priv->phy_node)
- of_node_put(priv->phy_node);
- priv->phy_node = NULL;
-
+err_node:
+ of_node_put(priv->phy_node);
irq_dispose_mapping(ndev->irq);
-
+err_rx_tx_dmatsk:
if (priv->rx_dmatsk)
bcom_fec_rx_release(priv->rx_dmatsk);
if (priv->tx_dmatsk)
bcom_fec_tx_release(priv->tx_dmatsk);
-
- if (priv->fec)
- iounmap(priv->fec);
-
+ iounmap(priv->fec);
+err_mem_region:
release_mem_region(mem.start, sizeof(struct mpc52xx_fec));
-
+err_netdev:
free_netdev(ndev);
return rv;
--
1.7.0.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 4/4] fec_mpc52xx: fix error path
@ 2010-07-08 12:10 ` Kulikov Vasiliy
0 siblings, 0 replies; 4+ messages in thread
From: Kulikov Vasiliy @ 2010-07-08 12:10 UTC (permalink / raw)
To: Kernel Janitors
Cc: David S. Miller, Grant Likely, Jiri Pirko, Eric Dumazet,
Sean MacLennan, netdev
Error path in mpc52xx_fec_probe() is broken.
We must free everything that we've allocated.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
---
drivers/net/fec_mpc52xx.c | 38 +++++++++++++++++---------------------
1 files changed, 17 insertions(+), 21 deletions(-)
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index 25e6cc6..5f83463 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -875,17 +875,21 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (rv) {
printk(KERN_ERR DRIVER_NAME ": "
"Error while parsing device node resource\n" );
- return rv;
+ goto err_netdev;
}
if ((mem.end - mem.start + 1) < sizeof(struct mpc52xx_fec)) {
printk(KERN_ERR DRIVER_NAME
" - invalid resource size (%lx < %x), check mpc52xx_devices.c\n",
(unsigned long)(mem.end - mem.start + 1), sizeof(struct mpc52xx_fec));
- return -EINVAL;
+ rv = -EINVAL;
+ goto err_netdev;
}
- if (!request_mem_region(mem.start, sizeof(struct mpc52xx_fec), DRIVER_NAME))
- return -EBUSY;
+ if (!request_mem_region(mem.start, sizeof(struct mpc52xx_fec),
+ DRIVER_NAME)) {
+ rv = -EBUSY;
+ goto err_netdev;
+ }
/* Init ether ndev with what we have */
ndev->netdev_ops = &mpc52xx_fec_netdev_ops;
@@ -901,7 +905,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (!priv->fec) {
rv = -ENOMEM;
- goto probe_error;
+ goto err_mem_region;
}
/* Bestcomm init */
@@ -914,7 +918,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
if (!priv->rx_dmatsk || !priv->tx_dmatsk) {
printk(KERN_ERR DRIVER_NAME ": Can not init SDMA tasks\n" );
rv = -ENOMEM;
- goto probe_error;
+ goto err_rx_tx_dmatsk;
}
/* Get the IRQ we need one by one */
@@ -966,33 +970,25 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match)
rv = register_netdev(ndev);
if (rv < 0)
- goto probe_error;
+ goto err_node;
/* We're done ! */
dev_set_drvdata(&op->dev, ndev);
return 0;
-
- /* Error handling - free everything that might be allocated */
-probe_error:
-
- if (priv->phy_node)
- of_node_put(priv->phy_node);
- priv->phy_node = NULL;
-
+err_node:
+ of_node_put(priv->phy_node);
irq_dispose_mapping(ndev->irq);
-
+err_rx_tx_dmatsk:
if (priv->rx_dmatsk)
bcom_fec_rx_release(priv->rx_dmatsk);
if (priv->tx_dmatsk)
bcom_fec_tx_release(priv->tx_dmatsk);
-
- if (priv->fec)
- iounmap(priv->fec);
-
+ iounmap(priv->fec);
+err_mem_region:
release_mem_region(mem.start, sizeof(struct mpc52xx_fec));
-
+err_netdev:
free_netdev(ndev);
return rv;
--
1.7.0.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 4/4] fec_mpc52xx: fix error path
2010-07-08 12:10 ` Kulikov Vasiliy
@ 2010-07-09 6:44 ` David Miller
-1 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2010-07-09 6:44 UTC (permalink / raw)
To: segooon
Cc: kernel-janitors, grant.likely, jpirko, eric.dumazet, smaclennan, netdev
From: Kulikov Vasiliy <segooon@gmail.com>
Date: Thu, 8 Jul 2010 16:10:16 +0400
> Error path in mpc52xx_fec_probe() is broken.
> We must free everything that we've allocated.
>
> Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Also applied, thanks.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 4/4] fec_mpc52xx: fix error path
@ 2010-07-09 6:44 ` David Miller
0 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2010-07-09 6:44 UTC (permalink / raw)
To: segooon
Cc: kernel-janitors, grant.likely, jpirko, eric.dumazet, smaclennan, netdev
From: Kulikov Vasiliy <segooon@gmail.com>
Date: Thu, 8 Jul 2010 16:10:16 +0400
> Error path in mpc52xx_fec_probe() is broken.
> We must free everything that we've allocated.
>
> Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Also applied, thanks.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-07-09 6:44 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-07-08 12:10 [PATCH 4/4] fec_mpc52xx: fix error path Kulikov Vasiliy
2010-07-08 12:10 ` Kulikov Vasiliy
2010-07-09 6:44 ` David Miller
2010-07-09 6:44 ` David Miller
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.