From: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Date: Mon, 10 Feb 2014 13:00:11 +0000 (+0100)
Subject: ACPI / PCI: Fix memory leak in acpi_pci_irq_enable()
X-Git-Tag: v4.9.8~6661^2~13^4~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b685f3b1744061aa9ad822548ba9c674de5be7c6;p=platform%2Fkernel%2Flinux-rpi3.git

ACPI / PCI: Fix memory leak in acpi_pci_irq_enable()

acpi_pci_link_allocate_irq() can return negative gsi even if
entry != NULL.  For that case we have a memory leak, so free
entry before returning from acpi_pci_irq_enable() for gsi < 0.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Cc: All applicable <stable@vger.kernel.org>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 52d45ea..361b40c 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -430,6 +430,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 				 pin_name(pin));
 		}
 
+		kfree(entry);
 		return 0;
 	}