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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: 337aadff8e (ACPI: Introduce CPU performance controls using CPPC)
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dan Carpenter 2015-10-22 22:52:59 +03:00 committed by Rafael J. Wysocki
parent ad806ea66c
commit 32c0b2f606
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/cppc_acpi.c
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@ -302,7 +302,7 @@ int acpi_get_psd_map(struct cpudata **all_cpu_data)
}
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;