diff options
| -rw-r--r-- | drivers/w1/slaves/w1_therm.c | 4 | ||||
| -rw-r--r-- | kernel/rcupdate.c | 2 | ||||
| -rw-r--r-- | kernel/sched.c | 8 |
3 files changed, 11 insertions, 3 deletions
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c index 4318935678c5f6..112f4ec5903542 100644 --- a/drivers/w1/slaves/w1_therm.c +++ b/drivers/w1/slaves/w1_therm.c @@ -112,7 +112,7 @@ static struct w1_therm_family_converter w1_therm_families[] = { static inline int w1_DS18B20_convert_temp(u8 rom[9]) { - int t = (rom[1] << 8) | rom[0]; + s16 t = (rom[1] << 8) | rom[0]; t /= 16; return t; } @@ -204,7 +204,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, crc = w1_calc_crc8(rom, 8); - if (rom[8] == crc && rom[0]) + if (rom[8] == crc) verdict = 1; } } diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index a66d4d1615f7ff..f2c1a04e9b1848 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -549,7 +549,7 @@ static void rcu_init_percpu_data(int cpu, struct rcu_ctrlblk *rcp, rdp->blimit = blimit; } -static void __devinit rcu_online_cpu(int cpu) +static void __cpuinit rcu_online_cpu(int cpu) { struct rcu_data *rdp = &per_cpu(rcu_data, cpu); struct rcu_data *bh_rdp = &per_cpu(rcu_bh_data, cpu); diff --git a/kernel/sched.c b/kernel/sched.c index 37cf07aa416477..e76b11ca6df320 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7153,6 +7153,14 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares) { int i; + /* + * A weight of 0 or 1 can cause arithmetics problems. + * (The default weight is 1024 - so there's no practical + * limitation from this.) + */ + if (shares < 2) + shares = 2; + spin_lock(&tg->lock); if (tg->shares == shares) goto done; |