From: Matthew Garrett <matthew.garrett@xxxxxxxxxx> Registering the handler after both GPUs will trigger a DDC switch for connector reprobing. This will oops if apple_gmux_data hasn't already been assigned. Reorder the code to do that. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88861 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61115 Tested-by: Paul Hordiienko <pvt.gord@xxxxxxxxx> [MBP 6,2 2010 intel ILK + nvidia GT216 pre-retina] Tested-by: William Brown <william@xxxxxxxxxxxxxxxx> [MBP 8,2 2011 intel SNB + amd turks pre-retina] Tested-by: Lukas Wunner <lukas@xxxxxxxxx> [MBP 9,1 2012 intel IVB + nvidia GK107 pre-retina] Tested-by: Bruno Bierbaumer <bruno@xxxxxxxxxxxxxx> [MBP 11,3 2013 intel HSW + nvidia GK107 retina -- work in progress] Signed-off-by: Matthew Garrett <matthew.garrett@xxxxxxxxxx> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx> --- drivers/platform/x86/apple-gmux.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index 08bdf1e..b120a11 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -609,18 +609,20 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id) gmux_data->gpe = -1; } + apple_gmux_data = gmux_data; + init_completion(&gmux_data->powerchange_done); + gmux_enable_interrupts(gmux_data); + if (vga_switcheroo_register_handler(&gmux_handler)) { ret = -ENODEV; goto err_register_handler; } - init_completion(&gmux_data->powerchange_done); - apple_gmux_data = gmux_data; - gmux_enable_interrupts(gmux_data); - return 0; err_register_handler: + gmux_disable_interrupts(gmux_data); + apple_gmux_data = NULL; if (gmux_data->gpe >= 0) acpi_disable_gpe(NULL, gmux_data->gpe); err_enable_gpe: -- 1.8.5.2 (Apple Git-48) _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
