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Josh Poimboeuf e63d465f59 objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds()
If dib8000_set_dds()'s call to dib8000_read32() returns zero, the result
is a divide-by-zero.  Prevent that from happening.

Fixes the following warning with an UBSAN kernel:

  drivers/media/dvb-frontends/dib8000.o: warning: objtool: dib8000_tune() falls through to next function dib8096p_cfg_DibRx()

Fixes: 173a64cb3f ("[media] dib8000: enhancement")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/bd1d504d930ae3f073b1e071bcf62cae7708773c.1742852847.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/r/202503210602.fvH5DO1i-lkp@intel.com/
2025-03-25 23:00:15 +01:00
arch objtool: Fix X86_FEATURE_SMAP alternative handling 2025-03-25 09:20:26 +01:00
block cgroup: Changes for v6.15 2025-03-24 16:49:40 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Documentation x86/build updates for v6.15: 2025-03-24 22:23:23 -07:00
drivers objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() 2025-03-25 23:00:15 +01:00
fs Scheduler updates for v6.15: 2025-03-24 21:28:12 -07:00
include objtool: Fix up some outdated references to ENTRY/ENDPROC 2025-03-25 09:20:27 +01:00
init [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
io_uring io_uring-6.14-20250322 2025-03-22 10:45:44 -07:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
lib [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
net vfs-6.15-rc1.afs 2025-03-24 13:15:16 -07:00
rust Locking changes for v6.15: 2025-03-24 20:55:03 -07:00
samples hardening updates for v6.15-rc1 2025-03-24 15:18:08 -07:00
scripts objtool: Remove --no-unreachable for noinstr-only vmlinux.o runs 2025-03-25 09:20:27 +01:00
security hardening updates for v6.15-rc1 2025-03-24 15:18:08 -07:00
sound ASoC: Fixes for v6.14 2025-03-13 07:33:48 +01:00
tools objtool: Remove redundant opts.noinstr dependency 2025-03-25 09:20:28 +01:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt vfs-6.15-rc1.misc 2025-03-24 09:13:50 -07:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
.mailmap platform-drivers-x86 for v6.14-5 2025-03-14 10:57:28 -10:00
.rustfmt.toml
COPYING
CREDITS MAINTAINERS: Move Pavel to kernel.org address 2025-02-07 09:12:33 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS bitmap changes for 6.15 2025-03-24 19:11:58 -07:00
Makefile [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.