[SPARC64]: In sys32_sched_getaffinity, put mask back to user if ret > 0.

arch/sparc64/kernel/sys_sparc32.c

@@ -4336,7 +4336,7 @@ asmlinkage int sys32_sched_getaffinity(__kernel_pid_t32 pid, unsigned int len,
 				    &kernel_mask);
 	set_fs(old_fs);
 
-	if (ret == 0) {
+	if (ret > 0) {
 		if (put_user(kernel_mask, user_mask_ptr))
 			ret = -EFAULT;
 	}