diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-01 22:20:11 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-01 22:20:11 -0400 |
| commit | bde17b90dd9712cb61a7ab0c1ccd0f7f6aa57957 (patch) | |
| tree | d4597bfde4f5d4a3a5729e5534c44993c6216352 /drivers | |
| parent | 1bca1000fa71a1092947b4a51928abe80a3316d2 (diff) | |
| parent | 676bd99178cd962ed24ffdad222b7069d330a969 (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"12 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
dmapool: fix overflow condition in pool_find_page()
thermal: avoid division by zero in power allocator
memcg: remove pcp_counter_lock
kprobes: use _do_fork() in samples to make them work again
drivers/input/joystick/Kconfig: zhenhua.c needs BITREVERSE
memcg: make mem_cgroup_read_stat() unsigned
memcg: fix dirty page migration
dax: fix NULL pointer in __dax_pmd_fault()
mm: hugetlbfs: skip shared VMAs when unmapping private pages to satisfy a fault
mm/slab: fix unexpected index mapping result of kmalloc_size(INDEX_NODE+1)
userfaultfd: remove kernel header include from uapi header
arch/x86/include/asm/efi.h: fix build failure
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/joystick/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/thermal/power_allocator.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig index 56eb471b5576..4215b5382092 100644 --- a/drivers/input/joystick/Kconfig +++ b/drivers/input/joystick/Kconfig @@ -196,6 +196,7 @@ config JOYSTICK_TWIDJOY config JOYSTICK_ZHENHUA tristate "5-byte Zhenhua RC transmitter" select SERIO + select BITREVERSE help Say Y here if you have a Zhen Hua PPM-4CH transmitter which is supplied with a ready to fly micro electric indoor helicopters diff --git a/drivers/thermal/power_allocator.c b/drivers/thermal/power_allocator.c index 7ff96270c933..e570ff084add 100644 --- a/drivers/thermal/power_allocator.c +++ b/drivers/thermal/power_allocator.c @@ -144,6 +144,16 @@ static void estimate_pid_constants(struct thermal_zone_device *tz, switch_on_temp = 0; temperature_threshold = control_temp - switch_on_temp; + /* + * estimate_pid_constants() tries to find appropriate default + * values for thermal zones that don't provide them. If a + * system integrator has configured a thermal zone with two + * passive trip points at the same temperature, that person + * hasn't put any effort to set up the thermal zone properly + * so just give up. + */ + if (!temperature_threshold) + return; if (!tz->tzp->k_po || force) tz->tzp->k_po = int_to_frac(sustainable_power) / |