lttng: Fix ceph_ctf_stringp

Signed-off-by: Adam Crume <adamcrume@gmail.com>

diff --git a/src/tracing/tracing-common.h b/src/tracing/tracing-common.h
index cb7a13e37bb51f1447b0ac675e4796a87b24328a..2ab1b764bfc27a3e62cd64268da2a5a5a48904ef 100644 (file)
--- a/src/tracing/tracing-common.h
+++ b/src/tracing/tracing-common.h
@@ -31,7 +31,7 @@
 
 // val should have type char**
 #define ceph_ctf_stringp(field, val) \
-    ctf_string(field, ((val) == NULL || *(val) == NULL) ? "" : (val)) \
+    ctf_string(field, ((val) == NULL || *(val) == NULL) ? "" : *(val)) \
     ctf_integer(uint8_t, field##_isnull, (val) == NULL) \
     ctf_integer(uint8_t, field##_data_isnull, (val) == NULL || *(val) == NULL)