From: Rafael J. Wysocki Date: Thu, 7 Nov 2013 00:42:17 +0000 (+0100) Subject: ACPI / hotplug: Do not execute "insert in progress" _OST X-Git-Tag: v3.12.2~93 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=df24f94953e79dc1fb8c559f7df256861025ff49;p=kernel%2Fkernel-generic.git ACPI / hotplug: Do not execute "insert in progress" _OST commit 176a88d79d6b5aebabaff16734e8b3107efcaaad upstream. According to the ACPI spec (5.0, Section 6.3.5), the "Device insertion in progress (pending)" (0x80) _OST status code is reserved for the "Insertion Processing" (0x200) source event which is "a result of an OSPM action". Specifically, it is not a notification, so that status code should not be used during notification processing, which unfortunately is done by acpi_scan_bus_device_check(). For this reason, drop the ACPI_OST_SC_INSERT_IN_PROGRESS _OST status evaluation from there (it was a mistake to put it in there in the first place). Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fee8a29..3601738 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -331,8 +331,6 @@ static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source) goto out; } } - acpi_evaluate_hotplug_ost(handle, ost_source, - ACPI_OST_SC_INSERT_IN_PROGRESS, NULL); error = acpi_bus_scan(handle); if (error) { acpi_handle_warn(handle, "Namespace scan failure\n");