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| author | Martin Stoilov <mstoilov@odesys.com> | 2007-02-05 16:15:23 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-16 15:19:17 -0800 |
| commit | 1350770112bd9bd5696cb52deb712370012d80e0 (patch) | |
| tree | 56c0c4636bb153114d4904c98496aa92bfa1a9c9 /lib | |
| parent | bb289bc46f3f0abeae58665242f0edb0c6ec501f (diff) | |
| download | kernel-common-1350770112bd9bd5696cb52deb712370012d80e0.tar.gz kernel-common-1350770112bd9bd5696cb52deb712370012d80e0.tar.bz2 kernel-common-1350770112bd9bd5696cb52deb712370012d80e0.zip | |
kobject: kobj->k_name verification fix
The function 'kobject_add' tries to verify the name of
a new kobject instance is properly set before continuing.
if (!kobj->k_name)
kobj->k_name = kobj->name;
if (!kobj->k_name) {
pr_debug("kobject attempted to be registered with no name!\n");
WARN_ON(1);
return -EINVAL;
}
The statement:
if (!kobj->k_name) {
pr_debug("kobject attempted to be registered with no name!\n");
WARN_ON(1);
return -EINVAL;
}
is useless the way it is right now, because it can never be true. I
think the
code was intended to be:
if (!kobj->k_name)
kobj->k_name = kobj->name;
if (!*kobj->k_name) {
pr_debug("kobject attempted to be registered with no name!\n");
WARN_ON(1);
return -EINVAL;
}
because this would make sure the kobj->name buffer has something in it.
So the missing '*' is just a typo. Although, I would much prefer
expression like:
if (*kobj->k_name == '\0') {
pr_debug("kobject attempted to be registered with no name!\n");
WARN_ON(1);
return -EINVAL;
}
because this would've made the intention clear, in this patch I just restore
the missing '*' without changing the coding style of the function.
Signed-off-by: Martin Stoilov <mstoilov@odesys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/kobject.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/kobject.c b/lib/kobject.c index 2782f49e906e..93685f43bb9b 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -171,7 +171,7 @@ int kobject_shadow_add(struct kobject * kobj, struct dentry *shadow_parent) return -ENOENT; if (!kobj->k_name) kobj->k_name = kobj->name; - if (!kobj->k_name) { + if (!*kobj->k_name) { pr_debug("kobject attempted to be registered with no name!\n"); WARN_ON(1); return -EINVAL; |