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Valentine Fatiev 94b960b9de net/mlx5e: Fix memory leak in mlx5_core_destroy_cq() error path 
Prior to this patch in case mlx5_core_destroy_cq() failed it returns
without completing all destroy operations and that leads to memory leak.
Instead, complete the destroy flow before return error.

Also move mlx5_debug_cq_remove() to the beginning of mlx5_core_destroy_cq()
to be symmetrical with mlx5_core_create_cq().

kmemleak complains on:

unreferenced object 0xc000000038625100 (size 64):
  comm "ethtool", pid 28301, jiffies 4298062946 (age 785.380s)
  hex dump (first 32 bytes):
    60 01 48 94 00 00 00 c0 b8 05 34 c3 00 00 00 c0  `.H.......4.....
    02 00 00 00 00 00 00 00 00 db 7d c1 00 00 00 c0  ..........}.....
  backtrace:
    [<000000009e8643cb>] add_res_tree+0xd0/0x270 [mlx5_core]
    [<00000000e7cb8e6c>] mlx5_debug_cq_add+0x5c/0xc0 [mlx5_core]
    [<000000002a12918f>] mlx5_core_create_cq+0x1d0/0x2d0 [mlx5_core]
    [<00000000cef0a696>] mlx5e_create_cq+0x210/0x3f0 [mlx5_core]
    [<000000009c642c26>] mlx5e_open_cq+0xb4/0x130 [mlx5_core]
    [<0000000058dfa578>] mlx5e_ptp_open+0x7f4/0xe10 [mlx5_core]
    [<0000000081839561>] mlx5e_open_channels+0x9cc/0x13e0 [mlx5_core]
    [<0000000009cf05d4>] mlx5e_switch_priv_channels+0xa4/0x230
[mlx5_core]
    [<0000000042bbedd8>] mlx5e_safe_switch_params+0x14c/0x300
[mlx5_core]
    [<0000000004bc9db8>] set_pflag_tx_port_ts+0x9c/0x160 [mlx5_core]
    [<00000000a0553443>] mlx5e_set_priv_flags+0xd0/0x1b0 [mlx5_core]
    [<00000000a8f3d84b>] ethnl_set_privflags+0x234/0x2d0
    [<00000000fd27f27c>] genl_family_rcv_msg_doit+0x108/0x1d0
    [<00000000f495e2bb>] genl_family_rcv_msg+0xe4/0x1f0
    [<00000000646c5c2c>] genl_rcv_msg+0x78/0x120
    [<00000000d53e384e>] netlink_rcv_skb+0x74/0x1a0

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Valentine Fatiev <valentinef@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-12 13:51:52 -07:00
arch ARM: dts: spear3xx: Fix gmac node 2021-10-08 16:22:39 +01:00
block block-5.15-2021-10-01 2021-10-02 11:00:36 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
Documentation dt-bindings: net: snps,dwmac: add dwmac 3.40a IP version 2021-10-08 16:22:39 +01:00
drivers net/mlx5e: Fix memory leak in mlx5_core_destroy_cq() error path 2021-10-12 13:51:52 -07:00
fs Bug fixes for NFSD error handling paths 2021-10-07 14:11:40 -07:00
include net: dsa: mv88e6xxx: isolate the ATU databases of standalone and bridged ports 2021-10-08 15:47:46 -07:00
init Merge branch 'work.init' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-09-24 10:18:07 -07:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2021-09-14 10:22:11 -07:00
kernel Networking fixes for 5.15-rc5, including fixes from xfrm, bpf, 2021-10-07 09:50:31 -07:00
lib lib/zlib_inflate/inffast: check config in C to avoid unused function warning 2021-09-24 16:13:35 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm: fix uninitialized use in overcommit_policy_handler 2021-09-24 16:13:35 -07:00
net ipv6: ioam: move the check for undefined bits 2021-10-12 11:49:49 +01:00
samples samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause 2021-09-29 16:03:55 +02:00
scripts kasan: always respect CONFIG_KASAN_STACK 2021-09-24 16:13:35 -07:00
security Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2021-10-07 12:44:41 +01:00
sound ALSA: pcsp: Make hrtimer forwarding more robust 2021-09-28 10:58:08 +02:00
tools selftests: net: modify IOAM tests for undef bits 2021-10-12 11:49:49 +01:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: Remove tlbs_dirty 2021-09-23 11:01:12 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: update email address of Matthias Fuchs and Thomas Körper 2021-08-19 09:39:44 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS net: dsa: mv88e6xxx: isolate the ATU databases of standalone and bridged ports 2021-10-08 15:47:46 -07:00
Makefile Linux 5.15-rc4 2021-10-03 14:08:47 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.