Add a default case to the switch case statement in mipi_exec_send_packet to prevent attempts to read an uninitialized ret value. It's unlikely the default case will ever occur during regular exeuction, but if more MIPI DSI Processor-to-Peripheral transaction types are ever added, then having this in place will be a useful safety guard.
Signed-off-by: Jonathan Cavitt <[email protected]> --- drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c index 31edf57a296f..4b815ce6b1fe 100644 --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c @@ -171,6 +171,9 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, case MIPI_DSI_DCS_LONG_WRITE: ret = mipi_dsi_dcs_write_buffer(dsi_device, data, len); break; + default: + ret = -EINVAL; + break; } if (ret < 0) -- 2.43.0
