hugetlb: fix return value of __setup handlers

When __setup() return '0', using invalid option values causes the entire
kernel boot option string to be reported as Unknown.  Hugetlb calls
__setup() and will return '0' when set invalid parameter string.

The following phenomenon is observed:
 cmdline:
  hugepagesz=1Y hugepages=1
 dmesg:
  HugeTLB: unsupported hugepagesz=1Y
  HugeTLB: hugepages=1 does not follow a valid hugepagesz, ignoring
  Unknown kernel command line parameters "hugepagesz=1Y hugepages=1"

Since hugetlb will print warning/error information before return for
invalid parameter string, just use return '1' to avoid print again.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Peng Liu <[email protected]>
Reviewed-by: Muchun Song <[email protected]>
Reviewed-by: Baolin Wang <[email protected]>
Reviewed-by: Davidlohr Bueso <[email protected]>
Reviewed-by: Mike Kravetz <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Liu Yuntao <[email protected]>
Cc: Zhenguo Yao <[email protected]>
Cc: Kefeng Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions