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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-07 00:42:17 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-11-29 19:27:56 (GMT)
commitdf24f94953e79dc1fb8c559f7df256861025ff49 (patch)
tree99183f7f653b9518f0a87d7939423b72e4823d5c /drivers/acpi
parentcf9dec04b035890995b3cb46d930f08bf5e9581d (diff)
downloadlinux-fsl-qoriq-df24f94953e79dc1fb8c559f7df256861025ff49.tar.xz
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 <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/scan.c2
1 files changed, 0 insertions, 2 deletions
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");