add something to open
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@ -82,6 +82,8 @@ lkm_open(struct inode *inode, struct file *fp)
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{
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printk(KERN_INFO "lkm: open: start\n");
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try_module_get(THIS_MODULE);
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printk(KERN_INFO "lkm: open: done\n");
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return 0;
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}
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