[PATCH v2] vmalloc.c: fix double error checking

["Figo.zhang" <figo1802@gmail.com>]

it is no need for double error checking.

in v2, if vmap_pud_ranger() error, directly return err. 

Signed-off-by: Figo.zhang <figo1802@gmail.com>
---
mm/vmalloc.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index f8189a4..ed6b4b9 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -168,11 +168,9 @@ static int vmap_page_range_noflush(unsigned long
start, unsigned long end,
 		next = pgd_addr_end(addr, end);
 		err = vmap_pud_range(pgd, addr, next, prot, pages, &nr);
 		if (err)
-			break;
+			return err;
 	} while (pgd++, addr = next, addr != end);
 
-	if (unlikely(err))
-		return err;
 	return nr;
 }