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| H A D | fault-injection.rst | diff 005747526d4f3c2ec995891e95cb7625161022f9 Thu Jun 03 14:58:41 CEST 2021 Wolfram Sang <wsa+renesas@sang-engineering.com> docs: fault-injection: fix non-working usage of negative values
Fault injection uses debugfs in a way that the provided values via sysfs
are interpreted as u64. Providing negative numbers results in an error:
/sys/kernel/debug/fail_function# echo -1 > times
sh: write error: Invalid argument
Update the docs and examples to use "printf %#x <val>" in these cases.
For "retval", reword the paragraph a little and fix a typo.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20210603125841.27436-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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