linux-kernel - [PATCH 3/3] parport: use release_mem_region instead of release

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1502574350-8333-3-git-send-email-sudipm.mukherjee@gmail.com>
Date:   Sat, 12 Aug 2017 22:45:50 +0100
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 3/3] parport: use release_mem_region instead of release_resource

From: Anton Vasilyev <vasilyev@...ras.ru>

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>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@...il.com>
---
 drivers/parport/parport_ax88796.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/parport/parport_ax88796.c b/drivers/parport/parport_ax88796.c
index 8f8c9f3..2fc91ed 100644
--- a/drivers/parport/parport_ax88796.c
+++ b/drivers/parport/parport_ax88796.c
@@ -358,8 +358,7 @@ static int parport_ax88796_probe(struct platform_device *pdev)
  exit_unmap:
 	iounmap(dd->base);
  exit_res:
-	release_resource(dd->io);
-	kfree(dd->io);
+	release_mem_region(dd->io->start, size);
  exit_mem:
 	kfree(dd);
 	return ret;
@@ -373,8 +372,7 @@ static int parport_ax88796_remove(struct platform_device *pdev)
 	free_irq(p->irq, p);
 	parport_remove_port(p);
 	iounmap(dd->base);
-	release_resource(dd->io);
-	kfree(dd->io);
+	release_mem_region(dd->io->start, resource_size(dd->io));
 	kfree(dd);
 
 	return 0;
-- 
1.9.1