diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 76a8f001f4c4dd46f5da6173e1d38c5070b0b298..c7a8d517ce811751f7d4c3208a1284d14b309bac 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2369,7 +2369,7 @@ static struct vbt_header *spi_oprom_get_vbt(struct drm_i915_private *i915)
 	vbt_size = intel_uncore_read(&i915->uncore, PRIMARY_SPI_TRIGGER);
 	vbt_size &= 0xffff;
 
-	vbt = kzalloc(vbt_size, GFP_KERNEL);
+	vbt = kzalloc(round_up(vbt_size, 4), GFP_KERNEL);
 	if (!vbt)
 		goto err_not_found;