diff options
| author | Tejun Heo <tj@kernel.org> | 2019-08-30 06:10:58 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-30 07:16:19 -0600 |
| commit | e916ad29d96485e5aa3d3237bfeab1522c713d5e (patch) | |
| tree | 24563cc1b1d29f838c97cf6c1b110625317263c1 /block/blk-iocost.c | |
| parent | 3532e7227243beb0b782266dc05c40b6184ad051 (diff) | |
| download | lwn-e916ad29d96485e5aa3d3237bfeab1522c713d5e.tar.gz lwn-e916ad29d96485e5aa3d3237bfeab1522c713d5e.zip | |
blkcg: add missing NULL check in ioc_cpd_alloc()
ioc_cpd_alloc() forgot to check NULL return from kzalloc(). Add it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-iocost.c')
| -rw-r--r-- | block/blk-iocost.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 9c8046ac5925..2aae8ec391ef 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1888,8 +1888,10 @@ static struct blkcg_policy_data *ioc_cpd_alloc(gfp_t gfp) struct ioc_cgrp *iocc; iocc = kzalloc(sizeof(struct ioc_cgrp), gfp); - iocc->dfl_weight = CGROUP_WEIGHT_DFL; + if (!iocc) + return NULL; + iocc->dfl_weight = CGROUP_WEIGHT_DFL; return &iocc->cpd; } |