firewire: fix small memory leak at module removal

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

3 files changed, 5 insertions, 1 deletions

diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c
index 6b9be42c7b98..31b6c74d34df 100644
--- a/drivers/firewire/fw-device.c
+++ b/drivers/firewire/fw-device.c
@@ -617,7 +617,7 @@ static int shutdown_unit(struct device *device, void *data)
  */
 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)
diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h
index 42305bbac72f..df51732608d9 100644
--- a/drivers/firewire/fw-device.h
+++ b/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 <asm/atomic.h>
 
@@ -99,6 +100,7 @@ void fw_device_cdev_update(struct fw_device *device);
 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;
 
 /*
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index 2884f876397b..699ac041f39a 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/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>
@@ -971,6 +972,7 @@ 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);