drm/ast: fix missing break in switch statement for format->cpp[0] case 4

Currently the switch statement for format->cpp[0] value 4 assigns
color_index which is never read again and then falls through to the
default case and returns. This looks like a missing break statement
bug. Fix this by adding a break statement.

Addresses-Coverity: ("Unused value")
Fixes: 4f582f6e7218 ("drm/ast: Split ast_set_vbios_mode_info()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200610115804.1132338-1-colin.king@canonical.com

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 7d39b858c9f1fbbfe68b6d2f0ad353f46b9ed99a..3a3a511670c9c3dd59808fda08a9063f7b97a5ea 100644 (file)
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -226,6 +226,7 @@ static void ast_set_vbios_color_reg(struct ast_private *ast,
        case 3:
        case 4:
                color_index = TrueCModeIndex;
+               break;
        default:
                return;
        }