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H A D | vga_switcheroo.c | 36704c0c Fri Aug 17 11:17:03 CDT 2012 Seth Forshee <seth.forshee@canonical.com> vga_switcheroo: Remove assumptions about registration/unregistration ordering
vga_switcheroo assumes that the handler will be registered before the last client, otherwise switching will not be enabled. Likewise it's assumed that the handler will not be unregistered without at least one client also being unregistered, otherwise switching will remain enabled despite no longer having a handler. These assumptions cannot be enforced if the handler is in a separate driver from both clients, as with the gmux found in Apple laptops. Remove this assumption.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> 36704c0c Fri Aug 17 11:17:03 CDT 2012 Seth Forshee <seth.forshee@canonical.com> vga_switcheroo: Remove assumptions about registration/unregistration ordering vga_switcheroo assumes that the handler will be registered before the last client, otherwise switching will not be enabled. Likewise it's assumed that the handler will not be unregistered without at least one client also being unregistered, otherwise switching will remain enabled despite no longer having a handler. These assumptions cannot be enforced if the handler is in a separate driver from both clients, as with the gmux found in Apple laptops. Remove this assumption. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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