Fix decoding of fcntl/fcntl64 operation argument

Consistently treat operation argument of fcntl/fcntl64 syscalls as int
to match the kernel behaviour.

* fcntl.c (print_fcntl, SYS_FUNC(fcntl), SYS_FUNC(fcntl64)): Assign
2nd argument of syscall to a variable of type unsigned int
and use it in all subsequent checks and lookups.
* tests/struct_flock.c (invoke_test_syscall): New function.
(test_flock_einval, test_flock): Use it.
* tests/fcntl.c (test_flock64_einval): Use it.
* tests/fcntl64.c (test_flock64_einval, test_flock64): Use it.

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/fcntl.c b/tests/fcntl.c
index dfad530ac..1ea83e148 100644
--- a/tests/fcntl.c
+++ b/tests/fcntl.c
@@ -44,7 +44,7 @@ test_flock64_einval(const int cmd, const char *name)
 		.l_start = 0xdefaced1facefeed,
 		.l_len = 0xdefaced2cafef00d
 	};
-	syscall(TEST_SYSCALL_NR, 0, cmd, &fl);
+	invoke_test_syscall(cmd, &fl);
 	printf("%s(0, %s, %p) = %s\n",
 	       TEST_SYSCALL_STR, name, &fl, EINVAL_STR);
 }