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Filename Latest commit message Latest commit date
XuDong Liu ed039ad88a drm: sun4i_tcon: use devm_clk_get_enabled in sun4i_tcon_init_clocks
[ Upstream commit 123ee07ba5b7123e0ce0e0f9d64938026c16a2ce ]

Smatch reports:
drivers/gpu/drm/sun4i/sun4i_tcon.c:805 sun4i_tcon_init_clocks() warn:
'tcon->clk' from clk_prepare_enable() not released on lines: 792,801.

In the function sun4i_tcon_init_clocks(), tcon->clk and tcon->sclk0 are
not disabled in the error handling, which affects the release of
these variable. Although sun4i_tcon_bind(), which calls
sun4i_tcon_init_clocks(), use sun4i_tcon_free_clocks to disable the
variables mentioned, but the error handling branch of
sun4i_tcon_init_clocks() ignores the required disable process.

To fix this issue, use the devm_clk_get_enabled to automatically
balance enable and disabled calls. As original implementation use
sun4i_tcon_free_clocks() to disable clk explicitly, we delete the
related calls and error handling that are no longer needed.

Fixes: 9026e0d122 ("drm: Add Allwinner A10 Display Engine support")
Fixes: b14e945bda ("drm/sun4i: tcon: Prepare and enable TCON channel 0 clock at init")
Fixes: 8e92404725 ("drm/sun4i: support TCONs without channel 1")
Fixes: 34d698f6e3 ("drm/sun4i: Add has_channel_0 TCON quirk")
Signed-off-by: XuDong Liu <m202071377@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230430112347.4689-1-m202071377@hust.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-27 08:37:13 +02:00
arch ARM: dts: BCM5301X: Drop "clock-names" from the SPI node 2023-07-27 08:37:13 +02:00
block block/blk-iocost (gcc13): keep large values in a new enum 2023-06-14 10:59:54 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
drivers drm: sun4i_tcon: use devm_clk_get_enabled in sun4i_tcon_init_clocks 2023-07-27 08:37:13 +02:00
fs pstore/ram: Add check for kstrdup 2023-07-27 08:37:06 +02:00
include netlink: Add __sock_i_ino() for __netlink_diag_dump(). 2023-07-27 08:37:12 +02:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-08 11:22:59 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:23:06 +01:00
kernel kexec: fix a memory leak in crash_shrink_memory() 2023-07-27 08:37:10 +02:00
lib lib/ts_bm: reset initial match offset for every block of text 2023-07-27 08:37:12 +02:00
LICENSES
mm mm: make wait_on_page_writeback() wait for multiple pending writebacks 2023-06-28 10:18:42 +02:00
net netlink: Add __sock_i_ino() for __netlink_diag_dump(). 2023-07-27 08:37:12 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts scripts/tags.sh: Resolve gtags empty index generation 2023-07-27 08:37:03 +02:00
security ima: Fix build warnings 2023-07-27 08:37:06 +02:00
sound ASoC: nau8824: Add quirk to active-high jack-detect 2023-06-28 10:18:41 +02:00
tools selftests: rtnetlink: remove netdevsim device after ipsec offload test 2023-07-27 08:37:11 +02:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
Makefile Linux 5.4.250 2023-07-24 19:10:53 +02:00
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.