From ec0c4f299c271f2472d67d336818e2505d19638a Mon Sep 17 00:00:00 2001
From: Alex Stratford <alexander3.stratford@live.uwe.ac.uk>
Date: Tue, 3 Dec 2019 20:25:09 +0000
Subject: [PATCH] Minor bug fixes
---
userprog/syscall_open.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/userprog/syscall_open.c b/userprog/syscall_open.c
index dcec481..386fa26 100644
--- a/userprog/syscall_open.c
+++ b/userprog/syscall_open.c
@@ -11,10 +11,11 @@
#include "filesys/file.h" // Dependency for file_open and file struct
void syscall_open(struct intr_frame *f) {
+ struct file_map *f_map; // Create f_map struct instance
// pop off first int argument from interrupt frame
- struct file_map *f_map->file_descriptor = *((int*)f->esp + 1);
+ f_map->file_descriptor = *((int*)f->esp + 1);
// Described in system_calls.h, opens the file
- f_map->file = file_open(file_descriptor);
+ f_map->file = file_open(f_map->file_descriptor);
if (f_map->file == NULL) // Checking if file is empty or non-existent
f->eax = -1; // Returning a failure state
f->eax = f_map->file_descriptor; // Returning the file descriptor
--
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