Turn a kzalloc()+strcpy()+strncat() into an equivalent and less verbose
kasprintf().
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
kernel/trace/trace_events_hist.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index d06938ae0717..1abc07fba1b9 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -774,23 +774,16 @@ static void last_cmd_set(struct trace_event_file *file, char *str)
{
const char *system = NULL, *name = NULL;
struct trace_event_call *call;
- int len;
if (!str)
return;
- /* sizeof() contains the nul byte */
- len = sizeof(HIST_PREFIX) + strlen(str);
kfree(last_cmd);
- last_cmd = kzalloc(len, GFP_KERNEL);
+
+ last_cmd = kasprintf(GFP_KERNEL, HIST_PREFIX "%s", str);
if (!last_cmd)
return;
- strcpy(last_cmd, HIST_PREFIX);
- /* Again, sizeof() contains the nul byte */
- len -= sizeof(HIST_PREFIX);
- strncat(last_cmd, str, len);
-
if (file) {
call = file->event_call;
system = call->class->system;
--
2.34.1
