[haiku-bugs] Re: [Haiku] #5118: Haiku panics on HDA sound card
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Sun, 13 Dec 2009 21:41:27 -0000
#5118: Haiku panics on HDA sound card
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Reporter: flaggy | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Audio & Video | Version: R1/Development
Keywords: | Blockedby:
Platform: x86 | Blocking:
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Comment(by anevilyak):
Replying to [comment:4 stippi]:
> I may have been looking at the wrong ioctl(), but how can a driver copy
something to a pointer that points to memory in the user land process? The
same address will point to completely unrelated kernel memory from the
driver's point of view, no?
Was it not using user_memcpy() ? That function's designed to deal with
precisely that case, where a pointer has to be resolved using the calling
team's address space map rather than the kernel's.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5118#comment:5>
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