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Yake Yang eb3f05179a Bluetooth: btmtksdio: Fix kernel oops when sdio suspend. 
Do not kfree the skb when the skb failed to send with __hci_cmd_sync

2435.241210] Call trace:
[ 2435.241224]  kfree_skb+0x20/0x140
[ 2435.241240]  btmtksdio_sdio_wakeup+0x8c/0xcc
[ 2435.241360]  hci_suspend_notifier+0x108/0x184
[ 2435.241377]  notifier_call_chain_robust+0x58/0xd8
[ 2435.241390]  blocking_notifier_call_chain_robust+0x54/0x84
[ 2435.241402]  pm_notifier_call_chain_robust+0x2c/0x4c
[ 2435.241414]  suspend_prepare+0x40/0x238
[ 2435.241425]  enter_state+0xec/0x3a8
[ 2435.241436]  pm_suspend+0x60/0xcc
[ 2435.241446]  state_store+0xb8/0x114
[ 2435.241460]  kobj_attr_store+0x18/0x2c
[ 2435.241473]  sysfs_kf_write+0x44/0x58
[ 2435.241486]  kernfs_fop_write_iter+0xf4/0x190
[ 2435.241500]  vfs_write+0x2b0/0x2e4
[ 2435.241511]  ksys_write+0x80/0xec
[ 2435.241523]  __arm64_sys_write+0x24/0x30
[ 2435.241538]  el0_svc_common+0xf0/0x1d8
[ 2435.241550]  do_el0_svc_compat+0x28/0x54
[ 2435.241564]  el0_svc_compat+0x10/0x1c
[ 2435.241574]  el0_sync_compat_handler+0xa8/0xcc
[ 2435.241586]  el0_sync_compat+0x188/0x1c0
[ 2435.241606] Code: a9014ff4 910003fd b40002c0 aa0003f3 (b84d4c08)
[ 2435.241619] ---[ end trace d496539b850baf14 ]---

Fixes: ce64b3e949  ("Bluetooth: mt7921s: Support wake on bluetooth")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2022-03-04 16:33:27 +01:00
arch dts: sparx5: Enable ptp interrupt 2022-03-04 13:03:09 +00:00
block block: clear iocb->private in blkdev_bio_end_io_async() 2022-02-22 06:59:49 -07:00
certs certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty 2022-01-23 00:08:44 +09:00
crypto crypto: af_alg - get rid of alg_memory_allocated 2022-02-15 14:29:04 +00:00
Documentation dt-bindings: net: sparx5: Extend with the ptp interrupt 2022-03-04 13:03:09 +00:00
drivers Bluetooth: btmtksdio: Fix kernel oops when sdio suspend. 2022-03-04 16:33:27 +01:00
fs Change since last update: 2022-03-02 12:08:36 -08:00
include Bluetooth: Fix not checking for valid hdev on bt_dev_{info,warn,err,dbg} 2022-03-04 16:10:50 +01:00
init Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-02-09 18:40:56 -08:00
ipc ipc/sem: do not sleep with a spin lock held 2022-02-04 09:25:05 -08:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm memblock: use kfree() to release kmalloced memblock regions 2022-02-26 12:00:44 -08:00
net Bluetooth: move adv_instance_cnt read within the device lock 2022-03-04 16:30:58 +01:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
security net: rtnetlink: Add RTM_SETSTATS 2022-03-03 10:37:23 +00:00
sound spi: Make remove() return void 2022-02-28 10:43:07 -08:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
usr kbuild: remove include/linux/cyclades.h from header file check 2022-01-27 08:51:08 +01:00
virt KVM: Fix lockdep false negative during host resume 2022-02-17 09:52:50 -05:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 Roman Gushchin's email 2022-02-26 09:51:17 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
Makefile Linux 5.17-rc6 2022-02-27 14:36:33 -08:00
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.