[LTP] [PATCH] mbind01: Fix the bug of mind case10

[Zhang Xiliang <zhangxiliang@cn.fujitsu.com>]

I tested ltp mbind01 case and found the case10 failed.

In case10, the expect errno is EFAULT. 

In mbind manual, it says "EFAULT Part or all of the memory range specified by nodemask 
and maxnode points outside your accessible address space. "

So the case should use invalid "nodemask" instead of invalid "p" to test.

Signed-off-by: Zhang Xiliang <zhangxiliang@cn.fujitsu.com>
---
 testcases/kernel/syscalls/mbind/mbind01.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/testcases/kernel/syscalls/mbind/mbind01.c b/testcases/kernel/syscalls/mbind/mbind01.c
index 446fdaf..4afa71b 100644
--- a/testcases/kernel/syscalls/mbind/mbind01.c
+++ b/testcases/kernel/syscalls/mbind/mbind01.c
@@ -238,8 +238,8 @@ static struct test_case tcase[] = {
         },
         { // case10
                 .ttype          = INVALID_POINTER,
-                .policy         = MPOL_DEFAULT,
-                .from_node      = NONE,
+                .policy         = MPOL_PREFERRED,
+                .from_node      = SELF,
                 .ret            = -1,
                 .err            = EFAULT,
         },
@@ -263,6 +263,7 @@ static int do_test(struct test_case *tc) {
         nodemask_t nodemask, getnodemask;
         unsigned long maxnode = NUMA_NUM_NODES;
         unsigned long len = MEM_LENGTH;
+	unsigned long *invalid_nodemask;
 
         /* We assume that there is only one node(node0). */
         nodemask_zero(&nodemask);
@@ -279,13 +280,15 @@ static int do_test(struct test_case *tc) {
                 tst_exit();
         }
         if(tc->ttype == INVALID_POINTER)
-                p = (char*)0xc0000000;
+		invalid_nodemask = (unsigned long *)0xc0000000;
 /*
          * Execute system call
          */
         errno = 0;
         if (tc->from_node == NONE)
                 TEST(sys_ret = syscall(__NR_mbind, p, len, tc->policy,NULL, 0, tc->flags));
+	else if (tc->ttype == INVALID_POINTER)
+		TEST(sys_ret = syscall(__NR_mbind, p, len, tc->policy, invalid_nodemask, maxnode, tc->flags));
         else
                 TEST(sys_ret = syscall(__NR_mbind, p, len, tc->policy,&nodemask, maxnode, tc->flags));
         sys_errno = errno;


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