export RK_PA3

hc

2024-02-19 151fecfb72a0d602dfe79790602ef64b4e241574

 kernel/fs/btrfs/file-item.c
..
..
@@ -602,7 +602,9 @@
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 				sums = kvzalloc(btrfs_ordered_sum_size(fs_info,
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 						      bytes_left), GFP_KERNEL);
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 				memalloc_nofs_restore(nofs_flag);
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-				BUG_ON(!sums); /* -ENOMEM */
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+				if (!sums)
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+					return BLK_STS_RESOURCE;
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+
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 				sums->len = bytes_left;
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 				ordered = btrfs_lookup_ordered_extent(inode,
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 								offset);