On 21-08-20, 10:44, Yue Hu wrote: > From: Yue Hu <[email protected]> > > We observed warning about kzalloc() when register thermal cooling device > in backlight_device_register(). backlight display can be a cooling device > since reducing screen brightness will can help reduce temperature. > > However, ->get_max_state of backlight will assign max brightness of 1024 > to states. The memory size can be getting 1MB+ due to states * states. > That is so large to trigger kmalloc() warning. > > So, let's use kvzalloc() to avoid the issue, also change kfree -> kvfree. > > Suggested-by: Amit Kucheria <[email protected]> > Signed-off-by: Yue Hu <[email protected]> > --- > drivers/thermal/thermal_sysfs.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-)
Acked-by: Viresh Kumar <[email protected]> -- viresh
