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Message-Id: <E1IDzLI-00009i-00@gondolin.me.apana.org.au>
Date: Thu, 26 Jul 2007 17:09:08 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
Patrick McHardy <kaber@...sh.net>,
Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 1/6] [NET]: Call uninit if necessary in register_netdevice
[NET]: Call uninit if necessary in register_netdevice
This patch makes register_netdevice call dev->uninit if the regsitration
fails after dev->init has completed successfully. Very few drivers use
the init/uninit calls but at least one (drivers/net/wan/sealevel.c) may
leak without this change.
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
---
net/core/dev.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/net/core/dev.c b/net/core/dev.c
index ee40355..a284c9b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3333,7 +3333,7 @@ int register_netdevice(struct net_device *dev)
if (!dev_valid_name(dev->name)) {
ret = -EINVAL;
- goto out;
+ goto err_uninit;
}
dev->ifindex = dev_new_index();
@@ -3347,7 +3347,7 @@ int register_netdevice(struct net_device *dev)
= hlist_entry(p, struct net_device, name_hlist);
if (!strncmp(d->name, dev->name, IFNAMSIZ)) {
ret = -EEXIST;
- goto out;
+ goto err_uninit;
}
}
@@ -3407,7 +3407,7 @@ int register_netdevice(struct net_device *dev)
ret = netdev_register_sysfs(dev);
if (ret)
- goto out;
+ goto err_uninit;
dev->reg_state = NETREG_REGISTERED;
/*
@@ -3432,6 +3432,11 @@ int register_netdevice(struct net_device *dev)
out:
return ret;
+
+err_uninit:
+ if (dev->uninit)
+ dev->uninit(dev);
+ goto out;
}
/**
-
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