linux-kernel - [PATCH] mtd: plat-ram: use release_mem_region instead of release

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Message-Id: <1502456103-1576-1-git-send-email-vasilyev@ispras.ru>
Date:   Fri, 11 Aug 2017 15:55:03 +0300
From:   Anton Vasilyev <vasilyev@...ras.ru>
To:     David Woodhouse <dwmw2@...radead.org>
Cc:     Anton Vasilyev <vasilyev@...ras.ru>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] mtd: plat-ram: use release_mem_region instead of release_resource

Use api pair of request_mem_region and release_mem_region
instead of release_resource.

Found by Linux Driver Verification project (linuxtesting.

Signed-off-by: Anton Vasilyev <vasilyev@...ras.ru>
---
 drivers/mtd/maps/plat-ram.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 5157289..baaf146 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -82,6 +82,7 @@ static inline void platram_setrw(struct platram_info *info, int to)
 static int platram_remove(struct platform_device *pdev)
 {
 	struct platram_info *info = to_platram_info(pdev);
+	resource_size_t res_size;
 
 	dev_dbg(&pdev->dev, "removing device\n");
 
@@ -100,8 +101,8 @@ static int platram_remove(struct platform_device *pdev)
 	/* release resources */
 
 	if (info->area) {
-		release_resource(info->area);
-		kfree(info->area);
+		res_size = resource_size(info->area)
+		release_mem_region(info->area->start, res_size);
 	}
 
 	if (info->map.virt != NULL)
-- 
2.7.4