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acpi: Support namespace reads into user addresses.

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Fixes #15176.
This commit is contained in:
Augustin Cavalier
2019-09-13 22:03:10 -04:00
parent cf344027f8
commit 48a00c0f66
1 changed files with 5 additions and 1 deletions
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src/add-ons/kernel/bus_managers/acpi/NamespaceDump.cpp
+4
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@@ -14,6 +14,7 @@
#include <Drivers.h> #include <Drivers.h>
#include <kernel.h>
#include <util/kernel_cpp.h> #include <util/kernel_cpp.h>
#include <util/ring_buffer.h> #include <util/ring_buffer.h>
@@ -389,6 +390,9 @@ RingBuffer::~RingBuffer()
size_t size_t
RingBuffer::Read(void *buffer, ssize_t size) RingBuffer::Read(void *buffer, ssize_t size)
{ {
if (IS_USER_ADDRESS(buffer))
return ring_buffer_user_read(fBuffer, (uint8*)buffer, size);
else
return ring_buffer_read(fBuffer, (uint8*)buffer, size); return ring_buffer_read(fBuffer, (uint8*)buffer, size);
} }