kernel: remove HANDLE_NULLFS

It was a dumb hack that wasn't even necessary - an error when mounting should
shadow over the mountpoint anyways.

2 files changed, 6 insertions, 2 deletions

diff --git a/src/cmd/shell/shell.c b/src/cmd/shell/shell.c
index 3aeaca1..9afdb5c 100644
--- a/src/cmd/shell/shell.c
+++ b/src/cmd/shell/shell.c
@@ -57,7 +57,7 @@ void run_args(int argc, char **argv, struct redir *redir) {
 		if (argc < 2) {
 			fprintf(stderr, "shadow: missing path\n");
 		} else {
-			_sys_mount(HANDLE_NULLFS, argv[1], strlen(argv[1]));
+			_sys_mount(-1, argv[1], strlen(argv[1]));
 		}
 	} else if (!strcmp(argv[0], "procmnt")) {
 		if (argc < 2) {
diff --git a/src/cmd/tests/kernel/miscsyscall.c b/src/cmd/tests/kernel/miscsyscall.c
index c7ce9e0..1317720 100644
--- a/src/cmd/tests/kernel/miscsyscall.c
+++ b/src/cmd/tests/kernel/miscsyscall.c
@@ -316,7 +316,11 @@ static void test_getnull(void) {
 	test(_sys_getsize(h) == -ENOSYS);
 	test(_sys_remove(h) == -ENOSYS);
 	test(_sys_fs_respond(h, buf, 16, 0) == -EBADF);
-	test(_sys_mount(h, "/asdf", 5) == -EGENERIC);
+
+	/* making some assumptions about the testing environment here... */
+	test(_sys_open("/test", 5, OPEN_READ) != -EGENERIC);
+	test(_sys_mount(h, "/test", 5) == 0);
+	test(_sys_open("/test", 5, OPEN_READ) == -EGENERIC);
 
 	close(h);
 	close(h2);