From: Fan Ni <nifan.cxl@gmail.com>
To: Zijun Hu <zijun_hu@icloud.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Tejun Heo <tj@kernel.org>, Josef Bacik <josef@toxicpanda.com>,
Jens Axboe <axboe@kernel.dk>, Boris Burkov <boris@bur.io>,
Davidlohr Bueso <dave@stgolabs.net>,
Jonathan Cameron <jonathan.cameron@huawei.com>,
Dave Jiang <dave.jiang@intel.com>,
Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
linux-block@vger.kernel.org, linux-cxl@vger.kernel.org,
Zijun Hu <quic_zijuhu@quicinc.com>
Subject: Re: [PATCH v3 5/9] driver core: Move true expression out of if condition in API device_find_child()
Date: Mon, 16 Dec 2024 10:02:35 -0800 [thread overview]
Message-ID: <Z2BrO0rVHCN8HXcg@fan> (raw)
In-Reply-To: <20241212-class_fix-v3-5-04e20c4f0971@quicinc.com>
On Thu, Dec 12, 2024 at 09:38:41PM +0800, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@quicinc.com>
>
> For device_find_child(), get_device() in the if condition always returns
> true, move it to if body to make the API's logic more clearer.
>
> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
> ---
> drivers/base/core.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/base/core.c b/drivers/base/core.c
> index 8bdbc9e657e832a063542391426f570ccb5c18b9..69bb6bf4bd12395226ee3c99e2f63d15c7e342a5 100644
> --- a/drivers/base/core.c
> +++ b/drivers/base/core.c
> @@ -4089,9 +4089,12 @@ struct device *device_find_child(struct device *parent, const void *data,
> return NULL;
>
> klist_iter_init(&parent->p->klist_children, &i);
> - while ((child = next_device(&i)))
> - if (match(child, data) && get_device(child))
> + while ((child = next_device(&i))) {
> + if (match(child, data)) {
> + get_device(child);
> break;
> + }
> + }
> klist_iter_exit(&i);
> return child;
> }
>
> --
> 2.34.1
>
--
Fan Ni
next prev parent reply other threads:[~2024-12-16 18:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-12 13:38 [PATCH v3 0/9] driver core: class: Fix bug and code improvements for class APIs Zijun Hu
2024-12-12 13:38 ` [PATCH v3 1/9] driver core: class: Fix wild pointer dereferences in API class_dev_iter_next() Zijun Hu
2024-12-16 15:36 ` Jonathan Cameron
2024-12-17 14:09 ` Zijun Hu
2024-12-12 13:38 ` [PATCH v3 2/9] blk-cgroup: Fix class @block_class's subsystem refcount leakage Zijun Hu
2024-12-17 10:53 ` Michal Koutný
2024-12-12 13:38 ` [PATCH v3 3/9] driver core: bus: Move true expression out of if condition in API bus_find_device() Zijun Hu
2024-12-16 15:14 ` Jonathan Cameron
2024-12-12 13:38 ` [PATCH v3 4/9] driver core: Move true expression out of if condition in API driver_find_device() Zijun Hu
2024-12-16 15:18 ` Jonathan Cameron
2024-12-16 18:01 ` Fan Ni
2024-12-17 14:13 ` Zijun Hu
2024-12-12 13:38 ` [PATCH v3 5/9] driver core: Move true expression out of if condition in API device_find_child() Zijun Hu
2024-12-16 15:19 ` Jonathan Cameron
2024-12-16 18:02 ` Fan Ni [this message]
2024-12-12 13:38 ` [PATCH v3 6/9] driver core: Rename declaration parameter name for API device_find_child() cluster Zijun Hu
2024-12-16 15:21 ` Jonathan Cameron
2024-12-16 18:02 ` Fan Ni
2024-12-12 13:38 ` [PATCH v3 7/9] driver core: Correct parameter check for API device_for_each_child_reverse_from() Zijun Hu
2024-12-16 15:23 ` Jonathan Cameron
2024-12-17 14:18 ` Zijun Hu
2024-12-12 13:38 ` [PATCH v3 8/9] driver core: Correct API device_for_each_child_reverse_from() prototype Zijun Hu
2024-12-16 15:30 ` Jonathan Cameron
2024-12-12 13:38 ` [PATCH v3 9/9] driver core: Introduce device_iter_t for device iterating APIs Zijun Hu
2024-12-16 15:33 ` Jonathan Cameron
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