linux-kernel - [PATCH] genalloc: fix device node resource counter

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Message-ID: <1411588260-29825-1-git-send-email-vladimir_zapolskiy@mentor.com>
Date:	Wed, 24 Sep 2014 22:51:00 +0300
From:	Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Will Deacon <will.deacon@....com>,
	Olof Johansson <olof@...om.net>,
	Catalin Marinas <catalin.marinas@....com>
Subject: [PATCH] genalloc: fix device node resource counter

The change balances a usage counter of np_pool device_node, which is
incremented on preceding of_parse_phandle() call.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Will Deacon <will.deacon@....com>
Cc: Olof Johansson <olof@...om.net>
Cc: Catalin Marinas <catalin.marinas@....com>
---
 lib/genalloc.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/genalloc.c b/lib/genalloc.c
index c7a91cf..cce4dd6 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -637,6 +637,7 @@ struct gen_pool *of_get_named_gen_pool(struct device_node *np,
 	if (!np_pool)
 		return NULL;
 	pdev = of_find_device_by_node(np_pool);
+	of_node_put(np_pool);
 	if (!pdev)
 		return NULL;
 	return dev_get_gen_pool(&pdev->dev);
-- 
1.7.10.4

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