linux-kernel - [PATCH] ARM: OMAP2+: Add missing put_device() call in omapdss_init

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Message-ID: <112eb5b9-bca7-41ca-efc9-1104b6063f75@web.de>
Date:   Sat, 9 Nov 2019 17:37:45 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Russell King <linux@...linux.org.uk>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Tony Lindgren <tony@...mide.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] ARM: OMAP2+: Add missing put_device() call in
 omapdss_init_of()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 9 Nov 2019 17:19:35 +0100

A coccicheck run provided information like the following.

arch/arm/mach-omap2/display.c:268:2-8: ERROR: missing put_device;
call of_find_device_by_node on line 258, but without a corresponding
object release within this function.

Generated by: scripts/coccinelle/free/put_device.cocci

Thus add the missed function call to fix the exception handling for
this function implementation.

Fixes: e0c827aca0730b51f38081aa4e8ecf0912aab55f ("drm/omap: Populate DSS children in omapdss driver")
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/arm/mach-omap2/display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 439e143cad7b..46012ca812f4 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -265,6 +265,7 @@ static int __init omapdss_init_of(void)
 	r = of_platform_populate(node, NULL, NULL, &pdev->dev);
 	if (r) {
 		pr_err("Unable to populate DSS submodule devices\n");
+		put_device(&pdev->dev);
 		return r;
 	}

--
2.24.0