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| author | Jens Axboe <axboe@kernel.dk> | 2018-08-23 12:22:10 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-08-23 12:22:10 -0600 |
| commit | 49e1ade14949b737dbd111b19a4057faf9aa77bb (patch) | |
| tree | 9f82e9c077237ac1effb074699a2855ceaad6b38 /lib | |
| parent | 7ab5b8d29ab4402f921b9d4d9a75d34aa9c69f69 (diff) | |
| download | fio-49e1ade14949b737dbd111b19a4057faf9aa77bb.tar.gz fio-49e1ade14949b737dbd111b19a4057faf9aa77bb.tar.bz2 | |
axmap: return early of an overlap results in 0 settable bits
Reported-by: Bart Van Assche <bart.vanassche@wdc.com>
Fixes: 15a4f49 ("lib/axmap: Simplify axmap_set_fn()")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/axmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/axmap.c b/lib/axmap.c index e194e807..03e712f5 100644 --- a/lib/axmap.c +++ b/lib/axmap.c @@ -241,6 +241,8 @@ static bool axmap_set_fn(struct axmap_level *al, unsigned long offset, if (overlap) { nr_bits = ffz(~overlap) - bit; + if (!nr_bits) + return true; mask = bit_masks[nr_bits] << bit; } |