mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
net: ethernet: ti: cpsw-phy-sel: check bus_find_device() ret value
This fixes klockworks warnings: Pointer 'dev' returned from call to function 'bus_find_device' at line 179 may be NULL and will be dereferenced at line 181. cpsw-phy-sel.c:179: 'dev' is assigned the return value from function 'bus_find_device'. bus.c:342: 'bus_find_device' explicitly returns a NULL value. cpsw-phy-sel.c:181: 'dev' is dereferenced by passing argument 1 to function 'dev_get_drvdata'. device.h:1024: 'dev' is passed to function 'dev_get_drvdata'. device.h:1026: 'dev' is explicitly dereferenced. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> [nsekhar@ti.com: add an error message, fix return path] Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
b3c898e20b
commit
c6213eb1ae
1 changed files with 7 additions and 1 deletions
|
@ -177,12 +177,18 @@ void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave)
|
|||
}
|
||||
|
||||
dev = bus_find_device(&platform_bus_type, NULL, node, match);
|
||||
of_node_put(node);
|
||||
if (!dev) {
|
||||
dev_err(dev, "unable to find platform device for %pOF\n", node);
|
||||
goto out;
|
||||
}
|
||||
|
||||
priv = dev_get_drvdata(dev);
|
||||
|
||||
priv->cpsw_phy_sel(priv, phy_mode, slave);
|
||||
|
||||
put_device(dev);
|
||||
out:
|
||||
of_node_put(node);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpsw_phy_sel);
|
||||
|
||||
|
|
Loading…
Reference in a new issue