> On Sun, Sep 04, 2016 at 01:59:38PM +0530, PrasannaKumar Muralidharan wrote:
>>
>> @@ -573,6 +557,17 @@ EXPORT_SYMBOL_GPL(devm_hwrng_unregister);
>>
>> static int __init hwrng_modinit(void)
>> {
>> + /* kmalloc makes this safe for virt_to_page() in virtio_rng.c */
>> + rng_buffer = kmalloc(rng_buffer_size(), GFP_KERNEL);
>> + if (!rng_buffer)
>> + return -ENOMEM;
>> +
>> + rng_fillbuf = kmalloc(rng_buffer_size(), GFP_KERNEL);
>> + if (!rng_fillbuf) {
>> + kfree(rng_buffer);
>> + return -ENOMEM;
>> + }
>> +
>> return register_miscdev();
>
> You're leaking memory if register_miscdev fails.
Ah, yes! I can send a revised patch.
Do you think allocating rng_buffer, rng_fillbuf in module init useful?
If not there is no point in sending a new patch with fix.
Thanks,
PrasannaKumar
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