[PATCH] fix uninitialized warnings in mempolicy.c

err may be used uninitialized in mempolicy.c in both compat_set_mempolicy
and compat_mbind.  This patch fixes that by setting them both to 0.
Signed-off-by: Jesse Barnes <jbarnes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/mempolicy.c

@@ -557,7 +557,7 @@ asmlinkage long compat_get_mempolicy(int __user *policy,
 asmlinkage long compat_set_mempolicy(int mode, compat_ulong_t __user *nmask,
 				     compat_ulong_t maxnode)
 {
-	long err;
+	long err = 0;
 	unsigned long __user *nm = NULL;
 	unsigned long nr_bits, alloc_size;
 	DECLARE_BITMAP(bm, MAX_NUMNODES);
@@ -581,7 +581,7 @@ asmlinkage long compat_mbind(compat_ulong_t start, compat_ulong_t len,
 			     compat_ulong_t mode, compat_ulong_t __user *nmask,
 			     compat_ulong_t maxnode, compat_ulong_t flags)
 {
-	long err;
+	long err = 0;
 	unsigned long __user *nm = NULL;
 	unsigned long nr_bits, alloc_size;
 	DECLARE_BITMAP(bm, MAX_NUMNODES);