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IBM-EMAC: Deletion of unnecessary checks before the function call "of_dev_put" 

The of_dev_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Markus Elfring 2014-11-20 14:22:47 +01:00 committed by David S. Miller
parent 312df74c71
commit 5ac0fd00e1
1 changed files with 8 additions and 16 deletions
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24
drivers/net/ethernet/ibm/emac/core.c
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@ -2323,16 +2323,11 @@ static int emac_check_deps(struct emac_instance *dev,
static void emac_put_deps(struct emac_instance *dev)
{
if (dev->mal_dev)
of_dev_put(dev->mal_dev);
if (dev->zmii_dev)
of_dev_put(dev->zmii_dev);
if (dev->rgmii_dev)
of_dev_put(dev->rgmii_dev);
if (dev->mdio_dev)
of_dev_put(dev->mdio_dev);
if (dev->tah_dev)
of_dev_put(dev->tah_dev);
of_dev_put(dev->mal_dev);
of_dev_put(dev->zmii_dev);
of_dev_put(dev->rgmii_dev);
of_dev_put(dev->mdio_dev);
of_dev_put(dev->tah_dev);
}
static int emac_of_bus_notify(struct notifier_block *nb, unsigned long action,
@ -2371,8 +2366,7 @@ static int emac_wait_deps(struct emac_instance *dev)
bus_unregister_notifier(&platform_bus_type, &emac_of_bus_notifier);
err = emac_check_deps(dev, deps) ? 0 : -ENODEV;
for (i = 0; i < EMAC_DEP_COUNT; i++) {
if (deps[i].node)
of_node_put(deps[i].node);
of_node_put(deps[i].node);
if (err && deps[i].ofdev)
of_dev_put(deps[i].ofdev);
}
@ -2383,8 +2377,7 @@ static int emac_wait_deps(struct emac_instance *dev)
dev->tah_dev = deps[EMAC_DEP_TAH_IDX].ofdev;
dev->mdio_dev = deps[EMAC_DEP_MDIO_IDX].ofdev;
}
if (deps[EMAC_DEP_PREV_IDX].ofdev)
of_dev_put(deps[EMAC_DEP_PREV_IDX].ofdev);
of_dev_put(deps[EMAC_DEP_PREV_IDX].ofdev);
return err;
}
@ -3113,8 +3106,7 @@ static void __exit emac_exit(void)
/* Destroy EMAC boot list */
for (i = 0; i < EMAC_BOOT_LIST_SIZE; i++)
if (emac_boot_list[i])
of_node_put(emac_boot_list[i]);
of_node_put(emac_boot_list[i]);
}
module_init(emac_init);