jail: make udebug socket optional

Do not fail the jail mount if it does not exist, since udebugd is
optional.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 files changed, 3 insertions, 2 deletions

diff --git a/jail/fs.c b/jail/fs.c
index 423878b..d0ca2b6 100644
--- a/jail/fs.c
+++ b/jail/fs.c
@@ -70,7 +70,8 @@ static int do_mount(const char *root, const char *orig_source, const char *targe
 	assert(!(inner && !orig_source));
 
 	if (source && is_bind && stat(source, &s)) {
-		ERROR("stat(%s) failed: %m\n", source);
+		if (error)
+			ERROR("stat(%s) failed: %m\n", source);
 		return error;
 	}
 
diff --git a/jail/jail.c b/jail/jail.c
index bd15b47..2326ce7 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -2708,7 +2708,7 @@ int main(int argc, char **argv)
 			break;
 		case 'D':
 			opts.namespace |= CLONE_NEWNS;
-			add_mount_bind(udebug, 0, -1);
+			add_mount_bind(udebug, 0, 0);
 			break;
 		case 'l':
 			opts.namespace |= CLONE_NEWNS;