From dac97e516c617f9c797f64b0224050b70aea30c7 Mon Sep 17 00:00:00 2001 From: Yoshinori Sano Date: Tue, 15 Feb 2011 12:01:42 +0000 Subject: 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 Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/btrfs/extent-tree.c') diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 1efeda3b2f6f..cd0b69f57375 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6978,6 +6978,10 @@ static noinline int get_new_locations(struct inode *reloc_inode, struct disk_extent *old = exts; max *= 2; exts = kzalloc(sizeof(*exts) * max, GFP_NOFS); + if (!exts) { + ret = -ENOMEM; + goto out; + } memcpy(exts, old, sizeof(*exts) * nr); if (old != *extents) kfree(old); -- cgit v1.2.3