ACPI: custom_method: fix memory leaks
authorWenwen Wang <wenwen@cs.uga.edu>
Fri, 16 Aug 2019 05:08:27 +0000 (00:08 -0500)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 2 Sep 2019 21:17:22 +0000 (23:17 +0200)
commit03d1571d9513369c17e6848476763ebbd10ec2cb
tree296fde035b930983a1e68cee556d6dfd30e16f4c
parent5c7ed4385424b1c2ce0c27c41448e080e44ebb09
ACPI: custom_method: fix memory leaks

In cm_write(), 'buf' is allocated through kzalloc(). In the following
execution, if an error occurs, 'buf' is not deallocated, leading to memory
leaks. To fix this issue, free 'buf' before returning the error.

Fixes: 526b4af47f44 ("ACPI: Split out custom_method functionality into an own driver")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/custom_method.c