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kobject: fix memory leak in kobject_set_name_vargs 

If the call to kvasprintf fails then the old name of the object will be leaked,
this patch fixes the bug by restoring the old name before returning ENOMEM.

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wifi-calibration
Maurizio Lombardi 2013-11-08 15:28:25 +01:00 committed by Greg Kroah-Hartman
parent 21d71662f8
commit 020d30f17f
1 changed files with 3 additions and 1 deletions
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4
lib/kobject.c
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@ -265,8 +265,10 @@ int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
return 0;
kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
if (!kobj->name)
if (!kobj->name) {
kobj->name = old_name;
return -ENOMEM;
}
/* ewww... some of these buggers have '/' in the name ... */
while ((s = strchr(kobj->name, '/')))