Sanjay Kumar, Noida a écrit :
Hi,
In the module registration function (loading) of the HelloDriverSource
http://wiki.kernelnewbies.org/wiki/HelloDriverSource
if the kmalloc fails for hello_msg, why do we need to release
the semaphore.This is the code snippet:
if (!hello_msg){
up(&hello_sem);
return -ENOMEM;
}
Till this point, the semaphore has not even been initialized.
Am I missing something.
Hi,
you're right : the up(&hello_sem) has nothong to do here.
Thanks.
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