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powercap/intel_rapl: Propagate error code when registration fails

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If rapl_package_register_powercap() fails in rapl_add_package() the
function happily returns 0.

Capture the error code and propagate it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Thomas Gleixner 2016-11-22 21:15:59 +00:00 committed by Rafael J. Wysocki
parent bed5ab6375
commit a74f436757
1 changed files with 4 additions and 4 deletions
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8
drivers/powercap/intel_rapl.c
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@ -1563,9 +1563,8 @@ static void rapl_remove_package(struct rapl_package *rp)
/* called from CPU hotplug notifier, hotplug lock held */
static int rapl_add_package(int cpu)
{
int ret = 0;
int phy_package_id;
struct rapl_package *rp;
int ret, phy_package_id;
phy_package_id = topology_physical_package_id(cpu);
rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL);
@ -1583,10 +1582,11 @@ static int rapl_add_package(int cpu)
ret = -ENODEV;
goto err_free_package;
}
if (!rapl_package_register_powercap(rp)) {
ret = rapl_package_register_powercap(rp);
if (!ret) {
INIT_LIST_HEAD(&rp->plist);
list_add(&rp->plist, &rapl_packages);
return ret;
return 0;
}
err_free_package: