Re: sym53c8xx PCI card broken in 2.6.18
From: Eric Brower
Date: Wed Aug 23 2006 - 01:32:44 EST
On 8/22/06, David Miller <davem@xxxxxxxxxxxxx> wrote:
From: "Eric Brower" <ebrower@xxxxxxxxx>
Date: Tue, 22 Aug 2006 20:59:14 -0700
> The envctrl OOPS is definately my fault in the blind conversion of the
> driver to the OF interface-- of_find_propery() return values should be
> checked for NULL rather than relying upon a -1 value stored into lenp.
> We can discuss this separately, since you are using an out-of-kernel
BTW, it is better to use "of_get_property()" if you are actually
interested in the value since it will return a void pointer to the
property value instead of a "struct property". of_find_property() is
useful if you just want to check for existence or if you want to
modify the property value.
Thanks, Dave. This driver is interested in property existence and
length-- some OBP versions don't create all expected envctrl
properties, and due to lack of implementation documentation the
property lengths are being checked as well; so of_find_property()
seems appropriate in this case.
Would you consider assigning -1 to lenp (if provided) in
of_find_property() when no matching device is found?
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