On Thu, Dec 19, 2013 at 5:38 AM, Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx> wrote:
> 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 <jiang.liu@xxxxxxxxxxxxxxx>
Rafael, if you want to take these through your tree, feel free. I'm
guessing it probably makes sense to keep the whole series together.
> ---
> 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;
> }
>
> --
> 1.7.10.4
>
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