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thermal: intel_powerclamp: Use bitmap_zalloc/bitmap_free when applicable

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'cpu_clamping_mask' is a bitmap. So use 'bitmap_zalloc()' and
'bitmap_free()' to simplify code, improve the semantic of the code and
avoid some open-coded arithmetic in allocator arguments.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Christophe JAILLET 2021-09-26 09:17:20 +02:00 committed by Rafael J. Wysocki
parent 9e1ff307c7
commit 7fc775ffeb
1 changed files with 3 additions and 5 deletions
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8
drivers/thermal/intel/intel_powerclamp.c
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@ -705,10 +705,8 @@ static enum cpuhp_state hp_state;
static int __init powerclamp_init(void)
{
int retval;
int bitmap_size;
bitmap_size = BITS_TO_LONGS(num_possible_cpus()) * sizeof(long);
cpu_clamping_mask = kzalloc(bitmap_size, GFP_KERNEL);
cpu_clamping_mask = bitmap_zalloc(num_possible_cpus(), GFP_KERNEL);
if (!cpu_clamping_mask)
return -ENOMEM;
@ -753,7 +751,7 @@ exit_free_thread:
exit_unregister:
cpuhp_remove_state_nocalls(hp_state);
exit_free:
kfree(cpu_clamping_mask);
bitmap_free(cpu_clamping_mask);
return retval;
}
module_init(powerclamp_init);
@ -764,7 +762,7 @@ static void __exit powerclamp_exit(void)
cpuhp_remove_state_nocalls(hp_state);
free_percpu(worker_data);
thermal_cooling_device_unregister(cooling_dev);
kfree(cpu_clamping_mask);
bitmap_free(cpu_clamping_mask);
cancel_delayed_work_sync(&poll_pkg_cstate_work);
debugfs_remove_recursive(debug_dir);