Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called
authorTsutomu Itoh <t-itoh@jp.fujitsu.com>
Mon, 1 Oct 2012 09:08:37 +0000 (03:08 -0600)
committerChris Mason <chris.mason@fusionio.com>
Tue, 9 Oct 2012 13:15:42 +0000 (09:15 -0400)
commitf0bd95ea72644cbf9210606f6f8edfce13d65d47
tree1d0c37da707984971f14f48966b40d5c86ea63ee
parent18ec90d63f43cf785f6e73e7a7db546bff3fa380
Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called

We should confirm the value of extent_map before calling
trace_btrfs_get_extent() because the value of extent_map has the
possibility of NULL.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
fs/btrfs/inode.c