diff options
| -rw-r--r-- | include/trace/ftrace.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 19edd7facaa..66dba42128d 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -368,7 +368,8 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ __data_size += (len) * sizeof(type); #undef __string -#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1) +#define __string(item, src) __dynamic_array(char, item, \ + strlen((src) ? (const char *)(src) : "(null)") + 1) #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ @@ -498,7 +499,7 @@ static inline notrace int ftrace_get_offsets_##call( \ #undef __assign_str #define __assign_str(dst, src) \ - strcpy(__get_str(dst), src); + strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)"); #undef TP_fast_assign #define TP_fast_assign(args...) args |