On Thu, Nov 19, 2020 at 08:38:49PM +0800, Xiongfeng Wang wrote:
> We return 'err' in the error branch, but this variable may be set as
> zero by the above code. Fix it by setting 'err' as a negative value
> before we goto the error label.
>
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@xxxxxxxxxx>
Missing fixes line
> drivers/infiniband/hw/mthca/mthca_cq.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c
> index c3cfea2..98d697b 100644
> --- a/drivers/infiniband/hw/mthca/mthca_cq.c
> +++ b/drivers/infiniband/hw/mthca/mthca_cq.c
> @@ -803,8 +803,10 @@ int mthca_init_cq(struct mthca_dev *dev, int nent,
> }
>
> mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
> - if (IS_ERR(mailbox))
> + if (IS_ERR(mailbox)) {
> + err = -ENOMEM;
> goto err_out_arm;
> + }
mthca_alloc_mailbox returns err_ptr so this should do
err = ERR_PTR(mailbox)
> cq_context = mailbox->buf;
>
> @@ -850,6 +852,7 @@ int mthca_init_cq(struct mthca_dev *dev, int nent,
> cq->cqn & (dev->limits.num_cqs - 1),
> cq)) {
> spin_unlock_irq(&dev->cq_table.lock);
> + err = -ENOMEM;
And this should assign err to the output of mthca_array_set
Please fix and resend.
Thanks,
Jason
