From 32c0b2f606a4b71fc7b7cfa479cf47648854d9d9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 22 Oct 2015 22:52:59 +0300 Subject: ACPI / CPPC: signedness bug in register_pcc_channel() The "pcc_subspace_idx" is -1 if it hasn't been initialized yet. We need it to be signed. Fixes: 337aadff8e45 (ACPI: Introduce CPU performance controls using CPPC) Signed-off-by: Dan Carpenter Acked-by: Ashwin Chaugule Signed-off-by: Rafael J. Wysocki --- drivers/acpi/cppc_acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 0bbf84bdcdc4..2ed55161bca5 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -302,7 +302,7 @@ err_ret: } EXPORT_SYMBOL_GPL(acpi_get_psd_map); -static int register_pcc_channel(unsigned pcc_subspace_idx) +static int register_pcc_channel(int pcc_subspace_idx) { struct acpi_pcct_subspace *cppc_ss; unsigned int len; -- cgit v1.2.3