diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2008-05-15 09:34:16 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-05-15 09:34:16 +0400 |
| commit | 0599ad53fee2d084f9ba26247d7452f06a40d298 (patch) | |
| tree | 2d31232e6991d507ff60ec6a774eb0b27de7aeca | |
| parent | dcc997738e538919101d8756f19ca23110b25d8d (diff) | |
| download | linux-0599ad53fee2d084f9ba26247d7452f06a40d298.tar.xz | |
sysfs: remove error messages for -EEXIST case
It is possible that the entry in sysfs already exists, one case of this is
when a network device is renamed to bonding_masters. Anyway, in this case
the proper error path is for device_rename to return an error code, not to
generate bogus backtrace and errors.
Also, to avoid possible races, the create link should be done before the
remove link. This makes a device rename atomic operation like other renames.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/base/core.c | 8 | ||||
| -rw-r--r-- | fs/sysfs/dir.c | 6 |
2 files changed, 4 insertions, 10 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index be288b5e4180..3eeac5a78581 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1218,13 +1218,11 @@ int device_rename(struct device *dev, char *new_name) } #else if (dev->class) { - sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, dev->bus_id); - if (error) { - dev_err(dev, "%s: sysfs_create_symlink failed (%d)\n", - __func__, error); - } + if (error) + goto out; + sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); } #endif diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index a1c3a1fab7f0..8c0e4b92574f 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -419,12 +419,8 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt, */ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) { - if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) { - printk(KERN_WARNING "sysfs: duplicate filename '%s' " - "can not be created\n", sd->s_name); - WARN_ON(1); + if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) return -EEXIST; - } sd->s_parent = sysfs_get(acxt->parent_sd); |