Documentation: ACPI: EINJ: Fix obsolete example

stable inclusion
from stable-v5.10.138
commit a408f135c4c2ba3948e1bbdbe5eff115f3d5d058
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60QFD

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a408f135c4c2ba3948e1bbdbe5eff115f3d5d058



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commit 9066e151 upstream.

Since commit 488dac0c ("libfs: fix error cast of negative value in
simple_attr_write()"), the EINJ debugfs interface no longer accepts
negative values as input. Attempt to do so will result in EINVAL.

Fixes: 488dac0c ("libfs: fix error cast of negative value in simple_attr_write()")
Signed-off-by: Qifu Zhang <zhangqifu@bytedance.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
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>
Reviewed-by: Wei Li <liwei391@huawei.com>