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Btrfs: fix possible memory leak in scrub_setup_recheck_block()
bbio has been malloced in btrfs_map_block() and should be freed before leaving from the error handling cases. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
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@ -1029,6 +1029,7 @@ static int scrub_setup_recheck_block(struct scrub_dev *sdev,
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spin_lock(&sdev->stat_lock);
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sdev->stat.malloc_errors++;
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spin_unlock(&sdev->stat_lock);
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kfree(bbio);
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return -ENOMEM;
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}
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sblock->page_count++;
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