Step 1: 
Patch 1:

```diff
diff --git a/CWE-190___CVE-2024-36015.c B/CWE-190___CVE-2024-36015.c
index 6c5f5b8..3e7a1d2 100644
--- a/CWE-190___CVE-2024-36015.c
+++ B/CWE-190___CVE-2024-36015.c
@@ -12,11 +12,11 @@ static int register_device(int minor, struct pp_struct *pp)
 	port = parport_find_number(minor);
 	if (!port) {
 		goto err;
+		return -ENODEV;
 	}
-
```

Patch 2:

```diff
diff --git A/CWE-190___CVE-2024-36015.c B/CWE-190___CVE-2024-36015.c
index 6c5f5b8..e3dee77 100644
--- A/CWE-190___CVE-2024-36015.c
+++ B/CWE-190___CVE-2024-36015.c
@@ -16,7 +16,9 @@ static int register_device(int minor, struct pp_struct *pp)
 	goto err;
 }
 

```

Patch 3:

```diff
diff --git A/CWE-190___CVE-2024-36015.c B/CWE-190___CVE-2024-36015.c
index 6c5f5b8..2d522fb 100644
--- A/CWE-190___CVE-2024-36015.c
+++ B/CWE-190___CVE-2024-36015.c
@@ -16,7 +16,9 @@ static int register_device(int minor, struct pp_struct *pp)
 	goto err;
 }

```

Patch 4:

```diff
diff --git A/CWE-190___CVE-2024-36015.c B/CWE-190___CVE-2024-36015.c
index 6c5f5b8..7d09c3a 100644
--- A/CWE-190___CVE-2024-36015.c
+++ B/CWE-190___CVE-2024-36015.c
@@ -16,7 +16,7 @@ static int register_device(int minor, struct pp_struct *pp)
 	goto err;
 }

```

Patch 5:

```diff
diff --git A/CWE-190___CVE-2024-36015.c B/CWE-190___CVE-2024-36015.c
index 6c5f5b8..fa3d7fb 100644
--- A/CWE-190___CVE-2024-36015.c
+++ B/CWE-190___CVE-2024-36015.c
@@ -16,6 +16,7 @@ static int register_device(int minor, struct pp_struct *pp)
 	goto err;
 }

```