4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jani Nikula <jani.nikula@xxxxxxxxx> commit 26f6f2d301c1fb46acb1138ee155125815239b0d upstream. Since sequence block v2 the second byte contains flags other than just pull up/down. Don't pass arbitrary data to the sideband interface. The rest may or may not work for sequence block v2, but there should be no harm done. Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/ebe3c2eee623afc4b3a134533b01f8d591d13f32.1454582914.git.jani.nikula@xxxxxxxxx (cherry picked from commit 4e1c63e3761b84ec7d87c75b58bbc8bcf18e98ee) Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -207,7 +207,7 @@ static const u8 *mipi_exec_gpio(struct i gpio = *data++; /* pull up/down */ - action = *data++; + action = *data++ & 1; if (gpio >= ARRAY_SIZE(gtable)) { DRM_DEBUG_KMS("unknown gpio %u\n", gpio); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html