From 2deb76db092a91088494c00862bafc4fe7980adb Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Mon, 13 Jan 2014 19:10:40 +0200
Subject: [PATCH] ore: Don't crash on NULL bio in _clear_bio

In the case of target returning OSD_ERR_PRI_CLEAR_PAGES when we
only sent for attributes don't crash on NULL bio.
This is an osd-target bug but don't crash regardless

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
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