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authorPeng Hao <peng.hao2@zte.com.cn>2018-11-06 22:57:13 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-07 13:53:04 +0100
commitd2ae1717f3f6b1bd86cd05d0443169b645445d62 (patch)
treebb281d4c505dc2fe1b9920ede34e6958ef19a3cc /drivers/misc/pvpanic.c
parentfcb418cd567febb310749e37507679e4f2703e56 (diff)
misc/pvpanic: simplify the code using acpi_dev_resource_io
Use acpi_dev_resource_io API. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/pvpanic.c')
-rw-r--r--drivers/misc/pvpanic.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/misc/pvpanic.c b/drivers/misc/pvpanic.c
index fd86daba7ffd..49c59e1d299d 100644
--- a/drivers/misc/pvpanic.c
+++ b/drivers/misc/pvpanic.c
@@ -77,17 +77,14 @@ static struct notifier_block pvpanic_panic_nb = {
static acpi_status
pvpanic_walk_resources(struct acpi_resource *res, void *context)
{
- switch (res->type) {
- case ACPI_RESOURCE_TYPE_END_TAG:
- return AE_OK;
+ struct resource r;
- case ACPI_RESOURCE_TYPE_IO:
- port = res->data.io.minimum;
+ if (acpi_dev_resource_io(res, &r)) {
+ port = r.start;
return AE_OK;
-
- default:
- return AE_ERROR;
}
+
+ return AE_ERROR;
}
static int pvpanic_add(struct acpi_device *device)