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linux-2.6-dm-alloc_dev-error-path-fix.patch
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File linux-2.6-dm-alloc_dev-error-path-fix.patch of Package kernel
Date: Thu, 21 Sep 2006 16:45:09 +0100 From: Alasdair G Kergon <agk@redhat.com> Subject: [RHEL5 PATCH 06/30] dm: fix alloc_dev error path While reading the code I found a bug in the error path in alloc_dev in dm.c When blk_alloc_queue fails there is no call to free_minor. This patch fixes the problem. Index: linux-2.6.18.noarch/drivers/md/dm.c =================================================================== --- linux-2.6.18.noarch.orig/drivers/md/dm.c +++ linux-2.6.18.noarch/drivers/md/dm.c @@ -943,7 +943,7 @@ static struct mapped_device *alloc_dev(i md->queue = blk_alloc_queue(GFP_KERNEL); if (!md->queue) - goto bad1; + goto bad1_free_minor; md->queue->queuedata = md; md->queue->backing_dev_info.congested_fn = dm_any_congested; @@ -993,6 +993,7 @@ static struct mapped_device *alloc_dev(i mempool_destroy(md->io_pool); bad2: blk_cleanup_queue(md->queue); + bad1_free_minor: free_minor(minor); bad1: module_put(THIS_MODULE);
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