[haiku-bugs] Re: [Haiku] #6679: KDL on boot with Intel wifi 2100
- From: "mmlr" <trac@xxxxxxxxxxxx>
- Date: Wed, 30 Mar 2011 16:21:29 -0000
#6679: KDL on boot with Intel wifi 2100
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Reporter: vercu | Owner: mmlr
Type: bug | Status: assigned
Priority: normal | Milestone: R1
Component: Network & Internet/Wireless | Version: R1/Development
Resolution: | Keywords: ipw2100
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by mmlr):
It is plain simply a bug. The driver doesn't require the firmware files,
it should fail gracefully if they aren't there and the network interface
would simply be unavailable. It did that back then, but it doesn't do that
anymore due to the change of the kernel heap which uncovers obvious
laziness on my part back in 2006. The heap back then would return either
NULL or a normally freeable address when it is supposed to allocate an
invalid amount of memory and would not fail to free() such an address. It
doesn't seem the new heap does that too, either returning an invalid
address or failing to take this into account on free (IMO that should be
fixed as well). But in any case the driver just needs to check for one of
the numerous error conditions that lead up to this (failing to open the
file, failing to seek to the end, getting an invalid size and failing to
allocate a buffer) which will cure this. I can change that tonight.
--
Ticket URL: <http://dev.haiku-os.org/ticket/6679#comment:9>
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