diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-05-05 08:35:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 08:35:00 +0200 |
| commit | 1fb48f8e54e5ed4d3d8599ba7e83f1f60530c81c (patch) | |
| tree | 6b8c1ccdd461e211f72c674d183f5129f5fe4a5b /kernel/locking/qspinlock_stat.h | |
| parent | 778843f934e362ed4ed734520f60a44a78a074b4 (diff) | |
| parent | 04974df8049fc4240d22759a91e035082ccd18b4 (diff) | |
Merge tag 'v4.6-rc6' into x86/asm, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking/qspinlock_stat.h')
| -rw-r--r-- | kernel/locking/qspinlock_stat.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/locking/qspinlock_stat.h b/kernel/locking/qspinlock_stat.h index eb2a2c9bc3fc..d734b7502001 100644 --- a/kernel/locking/qspinlock_stat.h +++ b/kernel/locking/qspinlock_stat.h @@ -136,10 +136,12 @@ static ssize_t qstat_read(struct file *file, char __user *user_buf, } if (counter == qstat_pv_hash_hops) { - u64 frac; + u64 frac = 0; - frac = 100ULL * do_div(stat, kicks); - frac = DIV_ROUND_CLOSEST_ULL(frac, kicks); + if (kicks) { + frac = 100ULL * do_div(stat, kicks); + frac = DIV_ROUND_CLOSEST_ULL(frac, kicks); + } /* * Return a X.XX decimal number |