From: Boaz Harrosh Date: Mon, 13 Jan 2014 17:10:40 +0000 (+0200) Subject: ore: Don't crash on NULL bio in _clear_bio X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2deb76db092a91088494c00862bafc4fe7980adb;p=linux-beck.git 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 --- diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c index 85cde3e76290..dae884694bd9 100644 --- a/fs/exofs/ore.c +++ b/fs/exofs/ore.c @@ -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",