From: Bjorn Helgaas Date: Mon, 21 Sep 2009 19:30:11 +0000 (+0000) Subject: ACPI: handle re-enumeration, when acpi_devices might already exist X-Git-Tag: v2.6.32-rc1~18^2~2^2~8 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3b87f8a9d5a61f6367c66d1bb0a4e19d251194d;p=pandora-kernel.git ACPI: handle re-enumeration, when acpi_devices might already exist acpi_bus_scan() traverses the namespace to enumerate devices and uses acpi_add_single_object() to create acpi_devices. When the platform notifies us of a hot-plug event, we need to traverse part of the namespace again to figure out what appeared or disappeared. (We don't yet call acpi_bus_scan() during hot-plug, but I plan to do that in the future.) This patch makes acpi_add_single_object() notice when we already have an acpi_device, so we don't need to make a new one. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- Reading git-diff-tree failed