From 54e5bb46597e5eba63e460a1f96eb2021dc71fec Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Thu, 19 Dec 2013 20:38:12 +0800 Subject: [PATCH] PCI / pci-label: release allocated ACPI object on error recovery path Function dsm_get_label() leaks the returned ACPI object if obj->package.count is not 2, so fix the possible memory leak. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/pci/pci-label.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index d51f45a..f6e01a5 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -233,11 +233,7 @@ dsm_get_label(acpi_handle handle, int func, return -1; obj = (union acpi_object *)output->pointer; - - switch (obj->type) { - case ACPI_TYPE_PACKAGE: - if (obj->package.count != 2) - break; + if (obj->type == ACPI_TYPE_PACKAGE && obj->package.count == 2) { len = obj->package.elements[0].integer.value; if (buf) { if (attribute == ACPI_ATTR_INDEX_SHOW) @@ -250,10 +246,10 @@ dsm_get_label(acpi_handle handle, int func, } kfree(output->pointer); return len; - break; - default: - kfree(output->pointer); } + + kfree(output->pointer); + return -1; } -- 2.7.4