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Diffstat (limited to '')
| -rw-r--r-- | kernel/user.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/user.c b/kernel/user.c index 592b35b..3c686a0 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -98,6 +98,10 @@ static int user_setup_stack(struct pcb *pcb) int user_load(struct pcb *pcb, struct disk *disk) { + // check inputs + if (pcb == NULL || disk == NULL) + return 1; + pcb->regs = NULL; // allocate memory context |