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| author | Yoshinori Sano <yoshinori.sano@gmail.com> | 2011-02-15 12:01:42 (GMT) |
|---|---|---|
| committer | root <Chris Mason chris.mason@oracle.com> | 2011-03-28 09:37:49 (GMT) |
| commit | dac97e516c617f9c797f64b0224050b70aea30c7 (patch) | |
| tree | c5c7e7a40e649ee9beb9014b284d3a6e66fb94f2 /fs/btrfs/inode.c | |
| parent | c622ae6085d0c6ad834213bbf1477eb311359078 (diff) | |
| download | linux-dac97e516c617f9c797f64b0224050b70aea30c7.tar.xz | |
Btrfs: fix uncheck memory allocations
To make Btrfs code more robust, several return value checks where memory
allocation can fail are introduced. I use BUG_ON where I don't know how
to handle the error properly, which increases the number of using the
notorious BUG_ON, though.
Signed-off-by: Yoshinori Sano <yoshinori.sano@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 67fd6e9..f739b25 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -290,6 +290,7 @@ static noinline int add_async_extent(struct async_cow *cow, struct async_extent *async_extent; async_extent = kmalloc(sizeof(*async_extent), GFP_NOFS); + BUG_ON(!async_extent); async_extent->start = start; async_extent->ram_size = ram_size; async_extent->compressed_size = compressed_size; @@ -388,6 +389,7 @@ again: (BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS))) { WARN_ON(pages); pages = kzalloc(sizeof(struct page *) * nr_pages, GFP_NOFS); + BUG_ON(!pages); if (BTRFS_I(inode)->force_compress) compress_type = BTRFS_I(inode)->force_compress; |