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acpi: fix acpi_os_read_pci_configuration() misuse of raw_pci_read()

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The raw_pci_read() interface (as the raw_pci_ops->read() before it)
unconditionally fills in a 32-bit integer return value regardless of the
size of the operation requested.

So claiming to take a "void *" is wrong, as is passing in a pointer to
just a byte variable.

Noticed by pageexec when enabling -fstack-protector (which needs other
patches too to actually work, but that's a separate issue).

Acked-by: Len Brown <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Linus Torvalds 2008-02-13 09:56:14 -08:00
commit 10270d4838
2 changed files with 9 additions and 9 deletions
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2
include/acpi/acpiosxf.h
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@ -222,7 +222,7 @@ acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
*/
acpi_status
acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
u32 reg, void *value, u32 width);
u32 reg, u32 *value, u32 width);
acpi_status
acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,