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kernel: fixing a potential deadlock in block2mtd for kernel 3.6/3.8/3.9
Signed-off-by: Alexander Couzens <lynxis@fe80.eu> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37842 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@@ -53,8 +53,9 @@
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page = page_read(dev->blkdev->bd_inode->i_mapping, index);
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- if (IS_ERR(page))
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- return PTR_ERR(page);
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+ if (IS_ERR(page)) {
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return PTR_ERR(page);
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+ err = PTR_ERR(page);
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+ goto done;
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+ }
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@@ -53,8 +53,9 @@
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page = page_read(dev->blkdev->bd_inode->i_mapping, index);
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- if (IS_ERR(page))
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- return PTR_ERR(page);
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+ if (IS_ERR(page)) {
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return PTR_ERR(page);
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+ err = PTR_ERR(page);
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+ goto done;
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+ }
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@@ -53,8 +53,9 @@
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page = page_read(dev->blkdev->bd_inode->i_mapping, index);
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- if (IS_ERR(page))
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- return PTR_ERR(page);
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+ if (IS_ERR(page)) {
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return PTR_ERR(page);
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+ err = PTR_ERR(page);
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+ goto done;
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+ }
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