linux-kernel - [PATCH AUTOSEL 5.4 24/27] drm/sun4i: Return if frontend is not present

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Date:   Mon, 27 Jun 2022 22:24:10 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Saud Farooqui <farooqui_saud@...mail.com>,
        Maxime Ripard <maxime@...no.tech>,
        Sasha Levin <sashal@...nel.org>, mripard@...nel.org,
        wens@...e.org, airlied@...ux.ie, daniel@...ll.ch,
        jernej.skrabec@...il.com, samuel@...lland.org,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Subject: [PATCH AUTOSEL 5.4 24/27] drm/sun4i: Return if frontend is not present

From: Saud Farooqui <farooqui_saud@...mail.com>

[ Upstream commit 85016f66af8506cb601fd4f4fde23ed327a266be ]

Added return statement in sun4i_layer_format_mod_supported()
in case frontend is not present.

Signed-off-by: Saud Farooqui <farooqui_saud@...mail.com>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/PA4P189MB1421E93EF5F8E8E00E71B7878BB29@PA4P189MB1421.EURP189.PROD.OUTLOOK.COM
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/sun4i/sun4i_layer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index c04f4ba0d69d..3104a2290b43 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -115,7 +115,7 @@ static bool sun4i_layer_format_mod_supported(struct drm_plane *plane,
 	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
 
 	if (IS_ERR_OR_NULL(layer->backend->frontend))
-		sun4i_backend_format_is_supported(format, modifier);
+		return sun4i_backend_format_is_supported(format, modifier);
 
 	return sun4i_backend_format_is_supported(format, modifier) ||
 	       sun4i_frontend_format_is_supported(format, modifier);
-- 
2.35.1