From: David Marchand <david.marchand@6wind.com>
To: Tetsuya Mukawa <mukawa@igel.co.jp>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v5 3/5] eal: Fix memory leaks and needless increment of pci_map_addr
Date: Thu, 25 Jun 2015 11:18:18 +0200 [thread overview]
Message-ID: <CALwxeUuCSu8wF=FT5fSKzf-+tN_VTgD3xftacboyZh3yiiu+nw@mail.gmail.com> (raw)
In-Reply-To: <1435202367-8887-4-git-send-email-mukawa@igel.co.jp>
On Thu, Jun 25, 2015 at 5:19 AM, Tetsuya Mukawa <mukawa@igel.co.jp> wrote:
> From: "Tetsuya.Mukawa" <mukawa@igel.co.jp>
>
> This patch fixes following memory leaks.
> - When open() is failed, uio_res and fds won't be freed in
> pci_uio_map_resource().
> - When pci_map_resource() is failed but path is allocated correctly,
> path and fds won't be freed in pci_uio_map_recource().
> - When pci_uio_unmap() is called, path should be freed.
>
> Also, fixes below.
> - When pci_map_resource() is failed, mapaddr will be MAP_FAILED.
> In this case, pci_map_addr should not be incremented in
> pci_uio_map_resource().
> - To shrink code, move close().
> - Remove fail variable.
>
> Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
> ---
> lib/librte_eal/bsdapp/eal/eal_pci.c | 14 +++++++--
> lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 51
> ++++++++++++++++++++-----------
> 2 files changed, 44 insertions(+), 21 deletions(-)
>
> diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c
> b/lib/librte_eal/bsdapp/eal/eal_pci.c
> index 8e24fd1..b071f07 100644
> --- a/lib/librte_eal/bsdapp/eal/eal_pci.c
> +++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
> @@ -235,7 +235,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
> if ((uio_res = rte_zmalloc("UIO_RES", sizeof (*uio_res), 0)) ==
> NULL) {
> RTE_LOG(ERR, EAL,
> "%s(): cannot store uio mmap details\n", __func__);
> - return -1;
> + goto close_fd;
> }
>
> snprintf(uio_res->path, sizeof(uio_res->path), "%s", devname);
> @@ -262,8 +262,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
> (mapaddr = pci_map_resource(NULL, devname,
> (off_t)offset,
> (size_t)maps[j].size)
> ) == NULL) {
> - rte_free(uio_res);
> - return -1;
> + goto free_uio_res;
> }
>
> maps[j].addr = mapaddr;
> @@ -274,6 +273,15 @@ pci_uio_map_resource(struct rte_pci_device *dev)
> TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
>
> return 0;
> +
> +free_uio_res:
> + rte_free(uio_res);
> +close_fd:
> + close(dev->intr_handle.fd);
> + dev->intr_handle.fd = -1;
> + dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
> +
> + return -1;
> }
>
>
Thinking about it, when something fails, don't you need to unmap pci
resources in uio_res->maps before freeing ?
--
David Marchand
next prev parent reply other threads:[~2015-06-25 9:18 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-19 5:54 [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-05-19 14:51 ` Stephen Hemminger
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-25 9:16 ` David Marchand
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-25 9:16 ` David Marchand
2015-06-26 1:30 ` Tetsuya Mukawa
2015-06-25 9:18 ` David Marchand [this message]
2015-06-26 1:35 ` Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-26 14:30 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-26 14:32 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-26 14:34 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-30 12:33 ` Iremonger, Bernard
2015-07-02 9:57 ` Bruce Richardson
2015-07-03 8:51 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-30 12:36 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 12:51 ` Iremonger, Bernard
2015-07-02 10:20 ` Bruce Richardson
2015-07-03 8:51 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-02 10:46 ` Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-07-03 9:45 ` Bruce Richardson
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:25 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-06-30 14:28 ` Iremonger, Bernard
2015-07-02 11:11 ` Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-06-30 14:45 ` Iremonger, Bernard
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-07 8:07 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-07 8:06 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-08 8:27 ` Thomas Monjalon
2015-07-08 8:50 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-07 8:07 ` David Marchand
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-08 16:09 ` Stephen Hemminger
2015-07-08 20:30 ` Thomas Monjalon
2015-07-09 1:09 ` Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 06/12] eal: Add pci_uio_alloc/free_resource() Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-08 12:36 ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations David Marchand
2015-07-08 21:52 ` Thomas Monjalon
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:56 ` Iremonger, Bernard
2015-07-01 6:39 ` Tetsuya Mukawa
2015-07-02 11:32 ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-26 14:36 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-26 14:42 ` Iremonger, Bernard
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-25 9:19 ` David Marchand
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-05-19 16:02 ` Stephen Hemminger
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-15 14:29 ` Iremonger, Bernard
2015-06-15 15:05 ` Iremonger, Bernard
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-15 14:31 ` Iremonger, Bernard
2015-06-15 15:08 ` Iremonger, Bernard
2015-06-15 15:17 ` Thomas Monjalon
2015-05-19 5:57 ` [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa
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