[PATCH 15/23 v3] tools lib traceevent: Fix reporting of unknown SVM exit reasons

From: Steven Rostedt
Date: Tue Jul 21 2020 - 21:18:44 EST


From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>

On AMD, exist code -1 is also a possible value, but we use it for
terminating the list of known exit reasons. This leads to EXIT_ERR
being reported for unkown ones. Fix this by using an NULL string
pointer as terminal.

Link: http://lkml.kernel.org/r/5741D817.3070902@xxxxxx
Link: http://lore.kernel.org/linux-trace-devel/20200702174950.123454-7-tz.stoyanov@xxxxxxxxx

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
[ Ported from trace-cmd.git ]
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx>
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
tools/lib/traceevent/plugins/plugin_kvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/plugins/plugin_kvm.c b/tools/lib/traceevent/plugins/plugin_kvm.c
index de76a1e79d9e..51ceeb9147eb 100644
--- a/tools/lib/traceevent/plugins/plugin_kvm.c
+++ b/tools/lib/traceevent/plugins/plugin_kvm.c
@@ -245,7 +245,7 @@ static const char *find_exit_reason(unsigned isa, int val)
}
if (!strings)
return "UNKNOWN-ISA";
- for (i = 0; strings[i].val >= 0; i++)
+ for (i = 0; strings[i].str; i++)
if (strings[i].val == val)
break;

--
2.26.2