linux-kernel - Re: [PATCH v1 1/1] maillbox: bcm-flexrm-mailbox: handle cmpl

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Date:   Wed, 18 Mar 2020 09:01:49 +0530
From:   Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>
Cc:     Jassi Brar <jassisinghbrar@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH v1 1/1] maillbox: bcm-flexrm-mailbox: handle cmpl_pool dma
 allocation failure

On Wed, Mar 18, 2020 at 1:01 AM Tyler Hicks <tyhicks@...ux.microsoft.com> wrote:
>
> On 2020-03-17 09:52:16, Rayagonda Kokatanur wrote:
> > Handle 'cmpl_pool' dma memory allocation failure.
> >
> > Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>
>
> This looks correct to me.
>
> Reviewed-by: Tyler Hicks <tyhicks@...ux.microsoft.com>
>
> It would be ideal if we could include this tag when applying the fix (or
> sending a v2):
>
> Fixes: a9a9da47f8e6 ("mailbox: no need to check return value of debugfs_create functions")
Thank you, added missing Fixes tag and sent v2.

>
> Thanks!
>
> Tyler
>
> > ---
> >  drivers/mailbox/bcm-flexrm-mailbox.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
> > index 8ee9db274802..bee33abb5308 100644
> > --- a/drivers/mailbox/bcm-flexrm-mailbox.c
> > +++ b/drivers/mailbox/bcm-flexrm-mailbox.c
> > @@ -1599,6 +1599,7 @@ static int flexrm_mbox_probe(struct platform_device *pdev)
> >                                         1 << RING_CMPL_ALIGN_ORDER, 0);
> >       if (!mbox->cmpl_pool) {
> >               ret = -ENOMEM;
> > +             goto fail_destroy_bd_pool;
> >       }
> >
> >       /* Allocate platform MSIs for each ring */
> > @@ -1661,6 +1662,7 @@ static int flexrm_mbox_probe(struct platform_device *pdev)
> >       platform_msi_domain_free_irqs(dev);
> >  fail_destroy_cmpl_pool:
> >       dma_pool_destroy(mbox->cmpl_pool);
> > +fail_destroy_bd_pool:
> >       dma_pool_destroy(mbox->bd_pool);
> >  fail:
> >       return ret;
> > --
> > 2.17.1
> >