drm/i915/dram: return -EINVAL instead of -1

Avoid using the incidental -EPERM.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e2f79220ed2558f615c051e2533275a5dae1a04f.1633000838.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/intel_dram.c b/drivers/gpu/drm/i915/intel_dram.c
index 9186652..30a0cab 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dram.c
+++ b/drivers/gpu/drm/i915/intel_dram.c
@@ -444,7 +444,7 @@ static int icl_pcode_read_mem_global_info(struct drm_i915_private *dev_priv)
                        break;
                default:
                        MISSING_CASE(val & 0xf);
-                       return -1;
+                       return -EINVAL;
                }
        } else {
                switch (val & 0xf) {
@@ -462,7 +462,7 @@ static int icl_pcode_read_mem_global_info(struct drm_i915_private *dev_priv)
                        break;
                default:
                        MISSING_CASE(val & 0xf);
-                       return -1;
+                       return -EINVAL;
                }
        }