rbd: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
This commit is contained in:
Duan Jiong 2014-04-11 16:38:12 +08:00 • committed by Yan, Zheng
commit 461f758ac0