From f63fe79fa0b1362e8ea1c1e4996cf70d14917b02 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 23 Aug 2012 16:37:00 +0900 Subject: [PATCH] tools lib traceevent: Fix off-by-one bug in pevent_strerror() As pevent_errno is defined using PEVENT_ERRORS which uses _PE macro magic, the first errno is bigger than __PEVENT_ERRNO_START by 1. So we need to subtract the 1 also when calculating the index of the error strings. Signed-off-by: Namhyung Kim Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1345707420-21767-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-parse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index f978c59f67bf..b5b4d806ffa2 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4822,7 +4822,7 @@ int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum, errnum >= __PEVENT_ERRNO__END) return -1; - idx = errnum - __PEVENT_ERRNO__START; + idx = errnum - __PEVENT_ERRNO__START - 1; msg = pevent_error_str[idx]; switch (errnum) { -- 2.20.1