mm/sparse: Remove unused ret in sparse_index_init

The ret variable is not used in the function, so remove it and
directly return 0 at the end of the function.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
1 file changed