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Fix work_from_work.c kernel panic

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This commit is contained in:
stubbfel
2017-06-23 00:21:48 +02:00
committed by Ciro Santilli
parent 01032004f7
commit f0b9bb30ea
1 changed files with 7 additions and 2 deletions
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9
kernel_module/work_from_work.c
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@@ -13,9 +13,13 @@ MODULE_LICENSE("GPL");
static int i = 0; static int i = 0;
static struct workqueue_struct *queue; static struct workqueue_struct *queue;
static void work_func(struct work_struct *work);
DECLARE_DELAYED_WORK(next_work, work_func);
DECLARE_WORK(work, work_func);
static void work_func(struct work_struct *work) static void work_func(struct work_struct *work)
{ {
DECLARE_DELAYED_WORK(next_work, work_func);
printk(KERN_INFO "%d\n", i); printk(KERN_INFO "%d\n", i);
i++; i++;
queue_delayed_work(queue, &next_work, HZ); queue_delayed_work(queue, &next_work, HZ);
@@ -23,7 +27,6 @@ static void work_func(struct work_struct *work)
static int myinit(void) static int myinit(void)
{ {
DECLARE_WORK(work, work_func);
queue = create_workqueue("myworkqueue"); queue = create_workqueue("myworkqueue");
queue_work(queue, &work); queue_work(queue, &work);
return 0; return 0;
@@ -31,6 +34,8 @@ static int myinit(void)
static void myexit(void) static void myexit(void)
{ {
cancel_delayed_work(&next_work);
flush_workqueue( queue );
destroy_workqueue(queue); destroy_workqueue(queue);
} }