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authorKay Sievers <kay.sievers@vrfy.org>2007-08-14 15:15:12 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:01 -0700
commit7eff2e7a8b65c25920207324e56611150eb1cd9a (patch)
tree02a0eeba9d25d996233e30c18f258dfae0ae2139 /net/core
parent8380770c842faef3001e44662953d64ad9a93663 (diff)
Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/net-sysfs.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 909a03d6c0e..6628e457ddc 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -396,28 +396,22 @@ static struct attribute_group wireless_group = {
#endif /* CONFIG_SYSFS */
#ifdef CONFIG_HOTPLUG
-static int netdev_uevent(struct device *d, char **envp,
- int num_envp, char *buf, int size)
+static int netdev_uevent(struct device *d, struct kobj_uevent_env *env)
{
struct net_device *dev = to_net_dev(d);
- int retval, len = 0, i = 0;
+ int retval;
/* pass interface to uevent. */
- retval = add_uevent_var(envp, num_envp, &i,
- buf, size, &len,
- "INTERFACE=%s", dev->name);
+ retval = add_uevent_var(env, "INTERFACE=%s", dev->name);
if (retval)
goto exit;
/* pass ifindex to uevent.
* ifindex is useful as it won't change (interface name may change)
* and is what RtNetlink uses natively. */
- retval = add_uevent_var(envp, num_envp, &i,
- buf, size, &len,
- "IFINDEX=%d", dev->ifindex);
+ retval = add_uevent_var(env, "IFINDEX=%d", dev->ifindex);
exit:
- envp[i] = NULL;
return retval;
}
#endif