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netdev: Assert that the type of a new network device is correct.

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This would have found a bug that I accidentally inserted while working on
netdev-linux.
This commit is contained in:
Ben Pfaff
2010-11-03 17:00:57 -07:00
parent 59348dba2c
commit a8f8673461
1 changed files with 5 additions and 2 deletions
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7
lib/netdev.c
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@@ -251,6 +251,7 @@ static int
create_device(struct netdev_options *options, struct netdev_dev **netdev_devp)
{
struct netdev_class *netdev_class;
int error;
if (!options->type || strlen(options->type) == 0) {
/* Default to system. */
@@ -262,8 +263,10 @@ create_device(struct netdev_options *options, struct netdev_dev **netdev_devp)
return EAFNOSUPPORT;
}
return netdev_class->create(netdev_class, options->name, options->args,
netdev_devp);
error = netdev_class->create(netdev_class, options->name, options->args,
netdev_devp);
assert(error || (*netdev_devp)->netdev_class == netdev_class);
return error;
}
/* Opens the network device named 'name' (e.g. "eth0") and returns zero if