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ak-lab-4
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hello2.c
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@ -44,7 +44,10 @@ static unsigned int msg_count = 1;
static int __init hello_init(void) static int __init hello_init(void)
{ {
BUG_ON(msg_count > 10); if (msg_count > 10) {
pr_err("Error: msg_count too large (%d > 10)\n", msg_count);
return -EINVAL;
}
if (msg_count == 0 || msg_count >= 5) if (msg_count == 0 || msg_count >= 5)
pr_warn("Warning: msg_count = %d (msg_count == 0 or 5 <= msg_count <= 10)\n", msg_count); pr_warn("Warning: msg_count = %d (msg_count == 0 or 5 <= msg_count <= 10)\n", msg_count);