Sometimes the comm field in the trace.dat file can be empty which means that the
event parsing stuff can pass a NULL into pevent_register_comm. To fix this just
check if we are NULL and generate a bogus comm name for that PID. This keeps us
from segfaulting. Thanks,
Signed-off-by: Josef Bacik <jba...@fb.com>
---
event-parse.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/event-parse.c b/event-parse.c
index 18b3587..00304fe 100644
--- a/event-parse.c
+++ b/event-parse.c
@@ -303,7 +303,10 @@ int pevent_register_comm(struct pevent *pevent, const char
*comm, int pid)
if (!item)
return -1;
- item->comm = strdup(comm);
+ if (comm)
+ item->comm = strdup(comm);
+ else
+ item->comm = strdup("<...>");
if (!item->comm) {
free(item);
return -1;
--
2.0.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
