linux-kernel - [PATCH 5.4 012/102] ARM: OMAP2+: Add missing put_device() call in omapdss_init

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Message-Id: <20200124092807.991706983@linuxfoundation.org>
Date:   Fri, 24 Jan 2020 10:30:13 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Markus Elfring <elfring@...rs.sourceforge.net>,
        Tony Lindgren <tony@...mide.com>
Subject: [PATCH 5.4 012/102] ARM: OMAP2+: Add missing put_device() call in omapdss_init_of()

From: Markus Elfring <elfring@...rs.sourceforge.net>

commit 0b491904f053e41685162af5c5411b85b18c97a7 upstream.

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>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-omap2/display.c |    1 +
 1 file changed, 1 insertion(+)

--- 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;
 	}