ocfs2: fix panic on kfree(xattr->name)

ocfs2: fix panic on kfree(xattr->name)

Commit 9548906b2bb7 ('xattr: Constify ->name member of "struct xattr"')
missed that ocfs2 is calling kfree(xattr->name).  As a result, kernel
panic occurs upon calling kfree(xattr->name) because xattr->name refers
static constant names.  This patch removes kfree(xattr->name) from
ocfs2_mknod() and ocfs2_symlink().

Signed-off-by: Tetsuo Handa <[email protected]>
Reported-by: Tariq Saeed <[email protected]>
Tested-by: Tariq Saeed <[email protected]>
Reviewed-by: Srinivas Eeda <[email protected]>
Cc: Joel Becker <[email protected]>
Cc: Mark Fasheh <[email protected]>
Cc: <[email protected]>	[3.12+]
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>