PM: wakeup: simplify the output logic of pm_show_wakelocks()
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Jan 2022 18:44:20 +0000 (19:44 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Feb 2022 16:27:00 +0000 (17:27 +0100)
commitfb9b60bbda5536dd268dcf00ca38a1f241ebb28b
treeabfbaa1eb58411eec791747e629a96fd3e9a4c5e
parent3df52448978802ae15dcebf66beba1029df957b4
PM: wakeup: simplify the output logic of pm_show_wakelocks()

commit c9d967b2ce40d71e968eb839f36c936b8a9cf1ea upstream.

The buffer handling in pm_show_wakelocks() is tricky, and hopefully
correct.  Ensure it really is correct by using sysfs_emit_at() which
handles all of the tricky string handling logic in a PAGE_SIZE buffer
for us automatically as this is a sysfs file being read from.

Reviewed-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
kernel/power/wakelock.c