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authorArvind Yadav <arvind.yadav.cs@gmail.com>2018-03-12 14:36:52 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-15 20:12:01 +0300
commit5fbe9f35dfcd83d94ec9bf4f68a9e0d7cc0550b5 (patch)
tree113b1cd6de62b6e6ca4703846e16107fa8cb7b32 /drivers/misc
parent1b723413aada7383a4b24ded93ed26eee1b3a3ca (diff)
downloadlinux-5fbe9f35dfcd83d94ec9bf4f68a9e0d7cc0550b5.tar.xz
misc: mic: Release reference count and memory for VOP device
Never directly free @dev after calling device_register(), even if it returned an error! Always use put_device() to give up the reference initialized. Release allocated memory for vop device in vop_release_dev(). Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/mic/bus/vop_bus.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index fd7f2a6049f8..e5bb9c749b5d 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -135,7 +135,9 @@ EXPORT_SYMBOL_GPL(vop_unregister_driver);
static void vop_release_dev(struct device *d)
{
- put_device(d);
+ struct vop_device *dev = dev_to_vop(d);
+
+ kfree(dev);
}
struct vop_device *
@@ -174,7 +176,7 @@ vop_register_device(struct device *pdev, int id,
goto free_vdev;
return vdev;
free_vdev:
- kfree(vdev);
+ put_device(&vdev->dev);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(vop_register_device);