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(parent: 53faf8f) | patch
tracing: Add WARN_ON_ONCE when returned value is negative
authorHyeonggon Yoo <42.hyeyoo@gmail.com>
Sat, 29 May 2021 06:14:23 +0000 (15:14 +0900)
committerSteven Rostedt (VMware) <rostedt@goodmis.org>
Thu, 10 Jun 2021 15:16:20 +0000 (11:16 -0400)
commit53463bdcdc95bad0b02090b4443f01c9f46ec4a3
treef977b64b327e2a5d1c03a487ae332f37a35936aetree | snapshot
parent53faf8fb8e32ab3df1ec5651fc093cc4f8604eb7commit | diff
tracing: Add WARN_ON_ONCE when returned value is negative

ret is assigned return value of event_hist_trigger_func, but the value
is unused. It is better to warn when returned value is negative,
rather than just ignoring it.

Link: https://lkml.kernel.org/r/20210529061423.GA103954@hyeyoo
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
kernel/trace/trace_events_hist.c diff | blob | history
Linux Kernel Source Tree.