perf tools: Convert open coded equivalents to asprintf()

The following snippet
	V = malloc(S);
	if (!V) { }
	sprintf(V, ...)

Can be easily changed to a one line:

	if (asprintf(&V, ...) < 0) { }

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/1404474229-15272-1-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 95aefa78bb07..e4132aeeb780 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -333,12 +333,9 @@ const char *find_tracing_dir(void)
         if (!debugfs)
                 return NULL;
 
-        tracing = malloc(strlen(debugfs) + 9);
-        if (!tracing)
+        if (asprintf(&tracing, "%s/tracing", debugfs) < 0)
                 return NULL;
 
-        sprintf(tracing, "%s/tracing", debugfs);
-
         tracing_found = 1;
         return tracing;
 }
@@ -352,11 +349,9 @@ char *get_tracing_file(const char *name)
         if (!tracing)
                 return NULL;
 
-        file = malloc(strlen(tracing) + strlen(name) + 2);
-        if (!file)
+        if (asprintf(&file, "%s/%s", tracing, name) < 0)
                 return NULL;
 
-        sprintf(file, "%s/%s", tracing, name);
         return file;
 }