Commit 06d2d643 authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by David S. Miller

net: freescale: fix potential null pointer dereference

Add NULL check before dereferencing pointer _id_ in order to avoid
a potential NULL pointer dereference.

Addresses-Coverity-ID: 1397995
Signed-off-by: default avatarGustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1b8f8694
...@@ -381,7 +381,7 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev) ...@@ -381,7 +381,7 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev)
{ {
const struct of_device_id *id = const struct of_device_id *id =
of_match_device(fsl_pq_mdio_match, &pdev->dev); of_match_device(fsl_pq_mdio_match, &pdev->dev);
const struct fsl_pq_mdio_data *data = id->data; const struct fsl_pq_mdio_data *data;
struct device_node *np = pdev->dev.of_node; struct device_node *np = pdev->dev.of_node;
struct resource res; struct resource res;
struct device_node *tbi; struct device_node *tbi;
...@@ -389,6 +389,13 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev) ...@@ -389,6 +389,13 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev)
struct mii_bus *new_bus; struct mii_bus *new_bus;
int err; int err;
if (!id) {
dev_err(&pdev->dev, "Failed to match device\n");
return -ENODEV;
}
data = id->data;
dev_dbg(&pdev->dev, "found %s compatible node\n", id->compatible); dev_dbg(&pdev->dev, "found %s compatible node\n", id->compatible);
new_bus = mdiobus_alloc_size(sizeof(*priv)); new_bus = mdiobus_alloc_size(sizeof(*priv));
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment