Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices: OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
Find a file
Mauro Carvalho Chehab 821e6f1612 media: atomisp: allocate a v4l2_fh at open time
This avoids an OOPS when VIDIOC_*_PRIORITY calls are used.

[   90.820011] BUG: kernel NULL pointer dereference, address: 0000000000000020
[   90.820021] #PF: supervisor read access in kernel mode
[   90.820026] #PF: error_code(0x0000) - not-present page
[   90.820030] PGD 1221bc067 P4D 1221bc067 PUD 1221bd067 PMD 0
[   90.820042] Oops: 0000 [#1] SMP
[   90.820048] CPU: 0 PID: 2007 Comm: qv4l2 Tainted: G         C        5.15.0-rc4+ #77
[   90.820055] Hardware name: ASUSTeK COMPUTER INC. T101HA/T101HA, BIOS T101HA.306 04/23/2019
[   90.820059] RIP: 0010:v4l2_prio_change+0xf/0x40 [videodev]
[   90.820096] Code: 48 8b 47 20 8b 40 44 25 ff ff 0f 00 48 8b 04 c5 20 58 44 c0 c3 66 0f 1f 44 00 00 0f 1f 44 00 00 8d 42 ff 83 f8 02 77 21 31 c0 <39> 16 74 20 8d 02 f0 ff 04 87 8b 06 89 c1 83 e9 01 83 f9 02 77 04
[   90.820103] RSP: 0018:ffffb348c142fd70 EFLAGS: 00010246
[   90.820109] RAX: 0000000000000000 RBX: ffff95575fbe2760 RCX: ffffb348c142fe48
[   90.820114] RDX: 0000000000000002 RSI: 0000000000000020 RDI: ffff955740996088
[   90.820118] RBP: 0000000040045644 R08: ffffffffc070da80 R09: 0000000000004000
[   90.820122] R10: 0000000000000000 R11: 0000000000000000 R12: ffff955766725300
[   90.820126] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000044
[   90.820131] FS:  00007f848526b900(0000) GS:ffff9557bbe00000(0000) knlGS:0000000000000000
[   90.820137] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.820141] CR2: 0000000000000020 CR3: 00000001221bf000 CR4: 00000000001006f0
[   90.820146] Call Trace:
[   90.820155]  __video_do_ioctl+0x37d/0x3b0 [videodev]
[   90.820189]  video_usercopy+0x188/0x7a0 [videodev]
[   90.820218]  ? v4l_print_control+0x20/0x20 [videodev]
[   90.820247]  ? swake_up_one+0x39/0x70
[   90.820258]  ? rcu_core+0xff/0x2e0
[   90.820267]  ? sched_clock_cpu+0x9/0xa0
[   90.820275]  ? irqtime_account_irq+0x38/0xb0
[   90.820282]  v4l2_ioctl+0x46/0x50 [videodev]

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-11-15 08:11:49 +00:00
arch parisc architecture build-, trace-, backtrace- and page table fixes 2021-11-14 11:53:59 -08:00
block blk-mq: fix filesystem I/O request allocation 2021-11-12 09:31:13 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation media: v4l2-ctrls: Add RGB color effects control 2021-11-15 08:11:32 +00:00
drivers media: atomisp: allocate a v4l2_fh at open time 2021-11-15 08:11:49 +00:00
fs Minor tweaks for 5.16: 2021-11-14 12:18:22 -08:00
include media: v4l2-ctrls: Add RGB color effects control 2021-11-15 08:11:32 +00:00
init kconfig: Add support for -Wimplicit-fallthrough 2021-11-14 13:27:30 -08:00
ipc ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL 2021-11-09 10:02:53 -08:00
kernel A single fix for POSIX CPU timers to address a problem where POSIX CPU 2021-11-14 10:43:38 -08:00
lib Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Revert "mm: shmem: don't truncate page if memory failure happens" 2021-11-13 12:03:03 -08:00
net One notable change here is that async creates and unlinks introduced 2021-11-13 11:31:07 -08:00
samples Add gitignore file for samples/fanotify/ subdirectory 2021-11-07 11:19:24 -08:00
scripts coccinelle patches for 5.16-rc1 2021-11-13 10:45:17 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-12 12:07:02 -05:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt KVM: generalize "bugged" VM to "dead" VM 2021-11-11 10:35:26 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.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 Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
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 media: staging: max96712: Add basic support for MAX96712 GMSL2 deserializer 2021-11-15 08:11:43 +00:00
Makefile Linux 5.16-rc1 2021-11-14 13:56:52 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.