What kernel is this patch against? > Allocating a workqueue might fail, which wasn't checked so far and would > lead to NULL ptr derefs when an attempt to use it was made. > > Signed-off-by: Sasha Levin <[email protected]> > --- > drivers/infiniband/core/ucma.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/infiniband/core/ucma.c > b/drivers/infiniband/core/ucma.c > index a53fc9b..30467d1 100644 > --- a/drivers/infiniband/core/ucma.c > +++ b/drivers/infiniband/core/ucma.c > @@ -1624,11 +1624,16 @@ static int ucma_open(struct inode *inode, struct > file *filp) > if (!file) > return -ENOMEM; > > + file->close_wq = create_singlethread_workqueue("ucma_close_id"); > + if (!file->close_wq) { > + kfree(file); > + return -ENOMEM; > + } > + > INIT_LIST_HEAD(&file->event_list); > INIT_LIST_HEAD(&file->ctx_list); > init_waitqueue_head(&file->poll_wait); > mutex_init(&file->mut); > - file->close_wq = create_singlethread_workqueue("ucma_close_id"); > > filp->private_data = file; > file->filp = filp; > -- > 1.7.10.4
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