Commit-ID: f63fe79fa0b1362e8ea1c1e4996cf70d14917b02
Gitweb: http://git.kernel.org/tip/f63fe79fa0b1362e8ea1c1e4996cf70d14917b02
Author: Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Thu, 23 Aug 2012 16:37:00 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 23 Aug 2012 11:29:20 -0300
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 <namhyung@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1345707420-21767-1-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/lib/traceevent/event-parse.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f978c59..b5b4d80 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) {
--
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