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-rw-r--r--kernel/trace/trace_output.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 0d6ff3555942..c5a01873567d 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -300,7 +300,7 @@ ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
unsigned long mask;
const char *str;
const char *ret = p->buffer + p->len;
- int i;
+ int i, first = 1;
for (i = 0; flag_array[i].name && flags; i++) {
@@ -310,14 +310,16 @@ ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
str = flag_array[i].name;
flags &= ~mask;
- if (p->len && delim)
+ if (!first && delim)
trace_seq_puts(p, delim);
+ else
+ first = 0;
trace_seq_puts(p, str);
}
/* check for left over flags */
if (flags) {
- if (p->len && delim)
+ if (!first && delim)
trace_seq_puts(p, delim);
trace_seq_printf(p, "0x%lx", flags);
}
@@ -344,7 +346,7 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
break;
}
- if (!p->len)
+ if (ret == (const char *)(p->buffer + p->len))
trace_seq_printf(p, "0x%lx", val);
trace_seq_putc(p, 0);
@@ -370,7 +372,7 @@ ftrace_print_symbols_seq_u64(struct trace_seq *p, unsigned long long val,
break;
}
- if (!p->len)
+ if (ret == (const char *)(p->buffer + p->len))
trace_seq_printf(p, "0x%llx", val);
trace_seq_putc(p, 0);
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