[PATCH 1/3] ppdev: fix memory leak
From: Sudip Mukherjee
Date: Thu Nov 10 2016 - 17:13:49 EST
The variable name was only released if parport_register_dev_model()
fails. Now that we are using the device-model the parport driver
will duplicate the name and use it. So we can release the variable
after the device has been registered with the parport.
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
---
drivers/char/ppdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 6af1ce0..f08f3ed 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -305,10 +305,10 @@ static int register_device(int minor, struct pp_struct *pp)
ppdev_cb.private = pp;
pdev = parport_register_dev_model(port, name, &ppdev_cb, minor);
parport_put_port(port);
+ kfree(name);
if (!pdev) {
printk(KERN_WARNING "%s: failed to register device!\n", name);
- kfree(name);
return -ENXIO;
}
--
1.9.1