4.9-stable review patch. If anyone has any objections, please let me know.
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From: NeilBrown neilb@suse.com
[ Upstream commit d8caf662b4aeeb2ac83ac0b22e40db88e9360c77 ]
ldlm_lock_create() gets a resource, but don't put it on all failure paths. It should.
Signed-off-by: NeilBrown neilb@suse.com Reviewed-by: James Simmons jsimmons@infradead.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/staging/lustre/lustre/ldlm/ldlm_lock.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -1489,8 +1489,10 @@ struct ldlm_lock *ldlm_lock_create(struc return ERR_CAST(res);
lock = ldlm_lock_new(res); - if (!lock) + if (!lock) { + ldlm_resource_putref(res); return ERR_PTR(-ENOMEM); + }
lock->l_req_mode = mode; lock->l_ast_data = data; @@ -1533,6 +1535,8 @@ out: return ERR_PTR(rc); }
+ + /** * Enqueue (request) a lock. * On the client this is called from ldlm_cli_enqueue_fini