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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2019-05-14 15:42:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-14 19:52:49 -0700
commit6c4e121fda519e0da5c6755a60fdef8cd39634ae (patch)
tree6e3ac0f2620159d6fdc1d117400b71bf16b11659 /kernel
parente02c9b0d65a7493180db45320f82482c6ba8ea57 (diff)
downloadlinux-6c4e121fda519e0da5c6755a60fdef8cd39634ae.tar.bz2
kernel/user.c: clean up some leftover code
The out_unlock label is misleading; no unlocking happens after it, so just return NULL directly. Also, nothing between the kmem_cache_zalloc() that creates new and the two key_put() can initialize new->uid_keyring or new->session_keyring, so those calls are no-ops. Link: http://lkml.kernel.org/r/20190424200404.9114-1-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/user.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/user.c b/kernel/user.c
index 0df9b1640b2a..88b834f0eebc 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -185,7 +185,7 @@ struct user_struct *alloc_uid(kuid_t uid)
if (!up) {
new = kmem_cache_zalloc(uid_cachep, GFP_KERNEL);
if (!new)
- goto out_unlock;
+ return NULL;
new->uid = uid;
refcount_set(&new->__count, 1);
@@ -199,8 +199,6 @@ struct user_struct *alloc_uid(kuid_t uid)
spin_lock_irq(&uidhash_lock);
up = uid_hash_find(uid, hashent);
if (up) {
- key_put(new->uid_keyring);
- key_put(new->session_keyring);
kmem_cache_free(uid_cachep, new);
} else {
uid_hash_insert(new, hashent);
@@ -210,9 +208,6 @@ struct user_struct *alloc_uid(kuid_t uid)
}
return up;
-
-out_unlock:
- return NULL;
}
static int __init uid_cache_init(void)