linux-kernel - [PATCH] i2c: use release_mem_region instead of release

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Date:   Thu, 10 Aug 2017 18:15:45 +0300
From:   Anton Vasilyev <vasilyev@...ras.ru>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     Anton Vasilyev <vasilyev@...ras.ru>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org
Subject: [PATCH] i2c: 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.org).

Signed-off-by: Anton Vasilyev <vasilyev@...ras.ru>
---
 drivers/i2c/busses/i2c-simtec.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-simtec.c b/drivers/i2c/busses/i2c-simtec.c
index b4685bb..adca51a 100644
--- a/drivers/i2c/busses/i2c-simtec.c
+++ b/drivers/i2c/busses/i2c-simtec.c
@@ -127,8 +127,7 @@ static int simtec_i2c_probe(struct platform_device *dev)
 	iounmap(pd->reg);
 
  err_res:
-	release_resource(pd->ioarea);
-	kfree(pd->ioarea);
+	release_mem_region(pd->ioarea->start, size);
 
  err:
 	kfree(pd);
@@ -142,8 +141,7 @@ static int simtec_i2c_remove(struct platform_device *dev)
 	i2c_del_adapter(&pd->adap);
 
 	iounmap(pd->reg);
-	release_resource(pd->ioarea);
-	kfree(pd->ioarea);
+	release_mem_region(pd->ioarea->start, resource_size(pd->ioarea));
 	kfree(pd);
 
 	return 0;
-- 
2.7.4