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powerpc/cacheinfo: Fix kobject memleak 

Currently error return from kobject_init_and_add() is not followed by
a call to kobject_put(). This means there is a memory leak.

Add call to kobject_put() in error path of kobject_init_and_add().

Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Tobin C. Harding 2019-04-30 11:09:23 +10:00 committed by Michael Ellerman
parent 33dda8c327
commit 7e8039795a
1 changed files with 6 additions and 7 deletions
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13
arch/powerpc/kernel/cacheinfo.c
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@ -759,23 +759,22 @@ static void cacheinfo_create_index_dir(struct cache *cache, int index,
index_dir = kzalloc(sizeof(*index_dir), GFP_KERNEL);
if (!index_dir)
goto err;
return;
index_dir->cache = cache;
rc = kobject_init_and_add(&index_dir->kobj, &cache_index_type,
cache_dir->kobj, "index%d", index);
if (rc)
goto err;
if (rc) {
kobject_put(&index_dir->kobj);
kfree(index_dir);
return;
}
index_dir->next = cache_dir->index;
cache_dir->index = index_dir;
cacheinfo_create_index_opt_attrs(index_dir);
return;
err:
kfree(index_dir);
}
static void cacheinfo_sysfs_populate(unsigned int cpu_id,