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authorTsutomu Itoh <t-itoh@jp.fujitsu.com>2011-02-14 00:45:29 +0000
committerChris Mason <chris.mason@oracle.com>2011-02-14 16:21:37 -0500
commitc26a920373a983b52223eed5a13b97404d8b4158 (patch)
treea7f76fe1b0cecbc712f0b152ff537805f126b113 /fs/btrfs/extent-tree.c
parent67100f255dba284bcbb5ce795355dad1cff35658 (diff)
Btrfs: check return value of alloc_extent_map()
I add the check on the return value of alloc_extent_map() to several places. In addition, alloc_extent_map() returns only the address or NULL. Therefore, check by IS_ERR() is unnecessary. So, I remove IS_ERR() checking. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 565e22d77b1..a7aaa10c530 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6584,7 +6584,7 @@ static noinline int relocate_data_extent(struct inode *reloc_inode,
u64 end = start + extent_key->offset - 1;
em = alloc_extent_map(GFP_NOFS);
- BUG_ON(!em || IS_ERR(em));
+ BUG_ON(!em);
em->start = start;
em->len = extent_key->offset;