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ACPI: watchdog: Fix gas->access_width usage

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commit 2ba33a4e9e22ac4dda928d3e9b5978a3a2ded4e0 upstream.

ACPI Generic Address Structure (GAS) access_width field is not in bytes
as the driver seems to expect in few places so fix this by using the
newly introduced macro ACPI_ACCESS_BYTE_WIDTH().

Fixes: b1abf6fc49 ("ACPI / watchdog: Fix off-by-one error at resource assignment")
Fixes: 058dfc7670 ("ACPI / watchdog: Add support for WDAT hardware watchdog")
Reported-by: Jean Delvare <[email protected]>
Signed-off-by: Mika Westerberg <[email protected]>
Reviewed-by: Jean Delvare <[email protected]>
Cc: 4.16+ <[email protected]> # 4.16+
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Mika Westerberg 2020-02-12 17:59:40 +03:00 • committed by Greg Kroah-Hartman
commit 07fec9a84c
2 changed files with 2 additions and 3 deletions
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2
drivers/watchdog/wdat_wdt.c
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@ -389,7 +389,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
memset(&r, 0, sizeof(r));
r.start = gas->address;
r.end = r.start + gas->access_width - 1;
r.end = r.start + ACPI_ACCESS_BYTE_WIDTH(gas->access_width) - 1;
if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
r.flags = IORESOURCE_MEM;
} else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {