From: Daniel Stodden Date: Fri, 30 Apr 2010 22:01:16 +0000 (+0000) Subject: blkfront: Fix backtrace in del_gendisk X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=89de1669ace055b56f1de1c9f5aca26dd7f17f25;p=linux-beck.git blkfront: Fix backtrace in del_gendisk The call to del_gendisk follows an non-refcounted gd->queue pointer. We release the last ref in blk_cleanup_queue. Fixed by reordering releases accordingly. Signed-off-by: Daniel Stodden Signed-off-by: Jeremy Fitzhardinge --- diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 7fa2a1db51e6..3258ae67ac7a 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1021,14 +1021,14 @@ static void blkfront_closing(struct blkfront_info *info) /* Flush gnttab callback work. Must be done with no locks held. */ flush_scheduled_work(); - blk_cleanup_queue(info->rq); - info->rq = NULL; - minor = info->gd->first_minor; nr_minors = info->gd->minors; del_gendisk(info->gd); xlbd_release_minors(minor, nr_minors); + blk_cleanup_queue(info->rq); + info->rq = NULL; + out: if (info->xbdev) xenbus_frontend_closed(info->xbdev);