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netdevsim: correctly check return value of debugfs_create_dir

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- Checking return value with IS_ERROR_OR_NULL
- Added error handling where it was not handled

Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Prashant Bhole
2017-12-20 12:18:57 +09:00
committed by David S. Miller
parent afb4c97d90
commit 9ee1942cb3
2 changed files with 8 additions and 6 deletions
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6
drivers/net/netdevsim/netdev.c
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@@ -151,6 +151,8 @@ static int nsim_init(struct net_device *dev)
ns->netdev = dev;
ns->ddir = debugfs_create_dir(netdev_name(dev), nsim_ddir);
if (IS_ERR_OR_NULL(ns->ddir))
return -ENOMEM;
err = nsim_bpf_init(ns);
if (err)
@@ -469,8 +471,8 @@ static int __init nsim_module_init(void)
int err;
nsim_ddir = debugfs_create_dir(DRV_NAME, NULL);
if (IS_ERR(nsim_ddir))
return PTR_ERR(nsim_ddir);
if (IS_ERR_OR_NULL(nsim_ddir))
return -ENOMEM;
err = bus_register(&nsim_bus);
if (err)