Allon Huang aec5601a93 drivers: media: platform: rockchip: cif: fix panic when stream on
log:
[   79.156494] Unable to handle kernel NULL pointer dereference at virtual address 00000200
[   79.168633] pgd = df940b55
[   79.171344] [00000200] *pgd=00000000
[   79.174933] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[   79.180249] Modules linked in:
[   79.183321] CPU: 1 PID: 1574 Comm: ImguThread Not tainted 4.19.111 #155
[   79.189933] Hardware name: Generic DT based system
[   79.194734] PC is at __list_add_valid+0x24/0x84
[   79.199272] LR is at rkcif_buf_queue+0x78/0x164
[   79.203805] pc : [<c04ae6b0>]    lr : [<c07896b0>]    psr: 60000093
[   79.210073] sp : c6127d80  ip : ca0bc7e4  fp : c13e5ee4
[   79.215295] r10: 60000013  r9 : ca0bc800  r8 : cb5e5b58
[   79.220525] r7 : 00000200  r6 : cb5e5a00  r5 : ca0bc7e4  r4 : ca0bc320
[   79.227048] r3 : ca0bc800  r2 : 00000200  r1 : 00000200  r0 : cb5e5b58
[   79.233573] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   79.240797] Control: 10c5387d  Table: 66f4c06a  DAC: 00000051

Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
Change-Id: Ifb3f307971faa9d80dc5a996a41327d11fac4d1b
2020-04-10 11:35:09 +08:00
2019-02-10 00:33:21 +08:00
2020-03-03 07:33:01 +01:00
2019-02-10 00:33:21 +08:00
2019-02-10 00:33:21 +08:00
2019-08-29 19:45:37 +08:00
2019-08-29 19:45:37 +08:00
2020-03-03 07:33:01 +01:00

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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