Re: [PATCH] INPUT: fix hidinput_connect ignoring retval frominput_register_device

From: Jiri Kosina
Date: Mon Oct 29 2007 - 13:29:06 EST


On Mon, 29 Oct 2007, Dirk Hohndel wrote:

> hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
> input_dev = input_allocate_device();
> if (!hidinput || !input_dev) {
> kfree(hidinput);
> input_free_device(input_dev);
> This either passes a NULL pointer to kfree or to input_free_device. That's
> not nice.

Actually both of the cases are fine -- it is valid to pass NULL pointer to
kfree() and to input_free_device() too.

> Would something like this work?

Yes, I think that this patch is in principle fine, modulo the redundant
NULL-ptr checks.

Thanks,

--
Jiri Kosina
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