From: Jon Hunter <jonathanh@nvidia.com>
To: Navid Emamdoost <navid.emamdoost@gmail.com>,
Laxman Dewangan <ldewangan@nvidia.com>,
Vinod Koul <vkoul@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Thierry Reding <thierry.reding@gmail.com>,
<dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: <emamd001@umn.edu>, <wu000273@umn.edu>, <kjlu@umn.edu>,
<smccaman@umn.edu>
Subject: Re: [PATCH] dmaengine: tegra210-adma: fix pm_runtime_get_sync failure
Date: Thu, 4 Jun 2020 18:45:11 +0100 [thread overview]
Message-ID: <900909fe-fa15-fbca-80f7-79aeee721ed9@nvidia.com> (raw)
In-Reply-To: <20200603184104.4475-1-navid.emamdoost@gmail.com>
On 03/06/2020 19:41, Navid Emamdoost wrote:
> Calling pm_runtime_get_sync increments the counter even in case of
> failure, causing incorrect ref count. Call pm_runtime_put if
> pm_runtime_get_sync fails.
>
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
> ---
> drivers/dma/tegra210-adma.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
> index c4ce5dfb149b..e8c749cd3fe8 100644
> --- a/drivers/dma/tegra210-adma.c
> +++ b/drivers/dma/tegra210-adma.c
> @@ -659,6 +659,7 @@ static int tegra_adma_alloc_chan_resources(struct dma_chan *dc)
> ret = pm_runtime_get_sync(tdc2dev(tdc));
> if (ret < 0) {
> free_irq(tdc->irq, tdc);
> + pm_runtime_put(tdc2dev(tdc));
> return ret;
> }
Please do not send two patches with the same $subject that are fixing
two different areas of the driver. In fact, please squash these two
patches into a single fix and resend because they are fixing the same issue.
Jon
--
nvpublic
next prev parent reply other threads:[~2020-06-04 17:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 18:41 [PATCH] dmaengine: tegra210-adma: fix pm_runtime_get_sync failure Navid Emamdoost
2020-06-04 17:45 ` Jon Hunter [this message]
2020-06-04 17:48 ` Navid Emamdoost
-- strict thread matches above, loose matches on Subject: below --
2020-06-03 18:38 Navid Emamdoost
2020-06-04 17:43 ` Jon Hunter
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