netapi32: Avoid shift overflow for GENERIC_READ_ACCESS and friends. friends.

[Gerald Pfeifer]

Strictly speaking we'd only need to cover the 1u << 31 case,
GENERIC_READ_ACCESS that is, but I noticed that in a similar
case a few weeks ago you added it for all cases, Alexandre,
so I figured I'd save you the extra work. ;-)

Gerald

---
 dlls/netapi32/netapi32.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/dlls/netapi32/netapi32.c b/dlls/netapi32/netapi32.c
index d7af2e0..bb61e7f 100644
--- a/dlls/netapi32/netapi32.c
+++ b/dlls/netapi32/netapi32.c
@@ -506,10 +506,10 @@ static unsigned char ace_flags_to_samba( BYTE flags )
     return ret;
 }
 
-#define GENERIC_ALL_ACCESS     (1 << 28)
-#define GENERIC_EXECUTE_ACCESS (1 << 29)
-#define GENERIC_WRITE_ACCESS   (1 << 30)
-#define GENERIC_READ_ACCESS    (1 << 31)
+#define GENERIC_ALL_ACCESS     (1u << 28)
+#define GENERIC_EXECUTE_ACCESS (1u << 29)
+#define GENERIC_WRITE_ACCESS   (1u << 30)
+#define GENERIC_READ_ACCESS    (1u << 31)
 
 static unsigned int access_mask_to_samba( DWORD mask )
 {
-- 
2.5.1