thermal: int340x: Fix attr.show callback prototype

stable inclusion
from stable-v5.10.114
commit 795afbe8b40c7a419d63ca3af5ace49b2b46060e
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5IY1V

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=795afbe8b40c7a419d63ca3af5ace49b2b46060e



--------------------------------

commit d0f6cfb2 upstream.

Control Flow Integrity (CFI) instrumentation of the kernel noticed that
the caller, dev_attr_show(), and the callback, odvp_show(), did not have
matching function prototypes, which would cause a CFI exception to be
raised. Correct the prototype by using struct device_attribute instead
of struct kobj_attribute.

Reported-and-tested-by: Joao Moreira <joao@overdrivepizza.com>
Link: https://lore.kernel.org/lkml/067ce8bd4c3968054509831fa2347f4f@overdrivepizza.com/


Fixes: 006f006f ("thermal/int340x_thermal: Export OEM vendor variables")
Cc: 5.8+ <stable@vger.kernel.org> # 5.8+
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>