Commit b365b3da authored by Chuck Ebbert's avatar Chuck Ebbert Committed by Greg Kroah-Hartman
Browse files

[PATCH] kobject: don't oops on null kobject.name 



kobject_get_path() will oops if one of the component names is
NULL.  Fix that by returning NULL instead of oopsing.

Signed-off-by: default avatarChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c171fef5

lib/kobject.c

+4 −0
Original line number Diff line number Diff line
@@ -72,6 +72,8 @@ static int get_kobj_path_length(struct kobject *kobj) 
	 * Add 1 to strlen for leading '/' of each level.

	 */

	do {

		if (kobject_name(parent) == NULL)

			return 0;

		length += strlen(kobject_name(parent)) + 1;

		parent = parent->parent;

	} while (parent);
@@ -107,6 +109,8 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) 
	int len;



	len = get_kobj_path_length(kobj);

	if (len == 0)

		return NULL;

	path = kmalloc(len, gfp_mask);

	if (!path)

		return NULL;