ACPI / battery: Retry to get battery information if failed during probing
authorLan Tianyu <tianyu.lan@intel.com>
Mon, 7 Jul 2014 07:47:12 +0000 (15:47 +0800)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 7 Jul 2014 11:39:00 +0000 (13:39 +0200)
commit75646e758a0ecbed5024454507d5be5b9ea9dcbf
tree2a30396bd8a469e790391897f3ad76c5e0c2d2f5
parentcd3de83f147601356395b57a8673e9c5ff1e59d1
ACPI / battery: Retry to get battery information if failed during probing

Some machines (eg. Lenovo Z480) ECs are not stable during boot up
and causes battery driver fails to be loaded due to failure of getting
battery information from EC sometimes. After several retries, the
operation will work. This patch is to retry to get battery information 5
times if the first try fails.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=75581
Reported-and-tested-by: naszar <naszar@ya.ru>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/battery.c