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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>
This commit is contained in:
Boaz Harrosh 2014-01-13 19:10:40 +02:00
parent aad560b7f6
commit 2deb76db09
1 changed files with 6 additions and 2 deletions
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8
fs/exofs/ore.c
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@ -431,8 +431,12 @@ int ore_check_io(struct ore_io_state *ios, ore_on_dev_error on_dev_error)
if (likely(!ret))
continue;
if (OSD_ERR_PRI_CLEAR_PAGES == osi.osd_err_pri) {
/* start read offset passed endof file */
if ((OSD_ERR_PRI_CLEAR_PAGES == osi.osd_err_pri) &&
per_dev->bio) {
/* start read offset passed endof file.
* Note: if we do not have bio it means read-attributes
* In this case we should return error to caller.
*/
_clear_bio(per_dev->bio);
ORE_DBGMSG("start read offset passed end of file "
"offset=0x%llx, length=0x%llx\n",