DPDK patches and discussions
 help / color / mirror / Atom feed
From: David Marchand <david.marchand@redhat.com>
To: wangyunjian <wangyunjian@huawei.com>
Cc: dev <dev@dpdk.org>, Jeff Guo <jia.guo@intel.com>,
	 "Lilijun (Jerry)" <jerry.lilijun@huawei.com>,
	xudingke <xudingke@huawei.com>,  dpdk stable <stable@dpdk.org>
Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH v3 1/2] eal: fix memory leak when removing event_cb
Date: Fri, 3 Jul 2020 09:23:02 +0200
Message-ID: <CAJFAV8wdXsbxNhwbXiSw4JFk4ad33W8W28eJCx0z27smG+tGqA@mail.gmail.com> (raw)
In-Reply-To: <1593690428-12708-1-git-send-email-wangyunjian@huawei.com>

On Thu, Jul 2, 2020 at 1:47 PM wangyunjian <wangyunjian@huawei.com> wrote:
>
> From: Yunjian Wang <wangyunjian@huawei.com>
>
> The event_cb->dev_name is not freed when freeing event_cb,
> and this causes a memory leak.
>
> Fixes: a753e53d517b ("eal: add device event monitor framework")
> Cc: stable@dpdk.org
>
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
> ---
>  lib/librte_eal/common/eal_common_dev.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
> index 9e4f09d..4cfdb80 100644
> --- a/lib/librte_eal/common/eal_common_dev.c
> +++ b/lib/librte_eal/common/eal_common_dev.c
> @@ -526,6 +526,8 @@ static int cmp_dev_name(const struct rte_device *dev, const void *_name)
>                  */
>                 if (event_cb->active == 0) {
>                         TAILQ_REMOVE(&dev_event_cbs, event_cb, next);
> +                       if (event_cb->dev_name)
> +                               free(event_cb->dev_name);

No need for the check, free handles a NULL pointer just fine.

Please, could you update your series/patches status in patchwork?
I am a bit lost at what is superseded or not.


Thanks.

-- 
David Marchand


  parent reply	other threads:[~2020-07-03  7:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-03 12:33 [dpdk-dev] [PATCH 0/3] fixes for device event wangyunjian
2020-06-03 12:54 ` wangyunjian
2020-06-03 12:54 ` [dpdk-dev] [PATCH 1/3] eal: fix memory leak when removing event_cb wangyunjian
2020-06-03 12:55 ` [dpdk-dev] [PATCH 2/3] eal: fix remove incorrect event_cb wangyunjian
2020-06-12  5:56   ` Jeff Guo
2020-06-30 11:29     ` wangyunjian
2020-06-30 11:56   ` [dpdk-dev] [PATCH v2] eal: fix memory leak when removing event_cb wangyunjian
2020-07-02  9:28     ` Jeff Guo
2020-07-02 10:53       ` wangyunjian
2020-07-02 11:46   ` [dpdk-dev] [PATCH v3 0/2] fixes for device event wangyunjian
2020-07-02 11:47   ` [dpdk-dev] [PATCH v3 1/2] eal: fix memory leak when removing event_cb wangyunjian
2020-07-03  6:04     ` Jeff Guo
2020-07-03  7:00       ` wangyunjian
2020-07-03  7:23     ` David Marchand [this message]
2020-07-03  7:52       ` [dpdk-dev] [dpdk-stable] " wangyunjian
2020-07-03  8:01         ` David Marchand
2020-07-02 11:47   ` [dpdk-dev] [PATCH v3 2/2] eal: return error code when failure wangyunjian
2020-06-03 12:55 ` [dpdk-dev] [PATCH 3/3] " wangyunjian
2020-07-02  9:18   ` Jeff Guo
2020-07-02 10:43     ` wangyunjian

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAJFAV8wdXsbxNhwbXiSw4JFk4ad33W8W28eJCx0z27smG+tGqA@mail.gmail.com \
    --to=david.marchand@redhat.com \
    --cc=dev@dpdk.org \
    --cc=jerry.lilijun@huawei.com \
    --cc=jia.guo@intel.com \
    --cc=stable@dpdk.org \
    --cc=wangyunjian@huawei.com \
    --cc=xudingke@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git