linux-kernel - [PATCH] firewire: fix small memory leak at module removal

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Message-ID: <tkrat.d0220c9ae409a998@s5r6.in-berlin.de>
Date:	Mon, 24 Nov 2008 20:40:00 +0100 (CET)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux1394-devel@...ts.sourceforge.net
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] firewire: fix small memory leak at module removal

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
 drivers/firewire/fw-device.c      |    2 +-
 drivers/firewire/fw-device.h      |    2 ++
 drivers/firewire/fw-transaction.c |    2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

Index: linux/drivers/firewire/fw-device.c
===================================================================
--- linux.orig/drivers/firewire/fw-device.c
+++ linux/drivers/firewire/fw-device.c
@@ -619,7 +619,7 @@ static int shutdown_unit(struct device *
  */
 DECLARE_RWSEM(fw_device_rwsem);
 
-static DEFINE_IDR(fw_device_idr);
+DEFINE_IDR(fw_device_idr);
 int fw_cdev_major;
 
 struct fw_device *fw_device_get_by_devt(dev_t devt)
Index: linux/drivers/firewire/fw-device.h
===================================================================
--- linux.orig/drivers/firewire/fw-device.h
+++ linux/drivers/firewire/fw-device.h
@@ -21,6 +21,7 @@
 
 #include <linux/fs.h>
 #include <linux/cdev.h>
+#include <linux/idr.h>
 #include <linux/rwsem.h>
 #include <linux/mutex.h>
 #include <asm/atomic.h>
@@ -103,6 +104,7 @@ void fw_device_cdev_update(struct fw_dev
 void fw_device_cdev_remove(struct fw_device *device);
 
 extern struct rw_semaphore fw_device_rwsem;
+extern struct idr fw_device_idr;
 extern int fw_cdev_major;
 
 /*
Index: linux/drivers/firewire/fw-transaction.c
===================================================================
--- linux.orig/drivers/firewire/fw-transaction.c
+++ linux/drivers/firewire/fw-transaction.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/completion.h>
+#include <linux/idr.h>
 #include <linux/kernel.h>
 #include <linux/kref.h>
 #include <linux/module.h>
@@ -968,6 +969,7 @@ static void __exit fw_core_cleanup(void)
 {
 	unregister_chrdev(fw_cdev_major, "firewire");
 	bus_unregister(&fw_bus_type);
+	idr_destroy(&fw_device_idr);
 }
 
 module_init(fw_core_init);

-- 
Stefan Richter
-=====-==--- =-== ==---
http://arcgraph.de/sr/

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