[PATCH perf/core] tools/perf/util/machine: Return NULL instead of null-terminating

[Donald Yandt]

Return NULL instead of null-terminating version char array when fgets fails due 
to end-of-file or error.

Signed-off-by: Donald Yandt <donald.ya...@gmail.com>
---
 tools/perf/util/machine.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 28a9541c4..6fd877220 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1235,9 +1235,9 @@ static char *get_kernel_version(const char *root_dir)
                return NULL;

        tmp = fgets(version, sizeof(version), file);
-       if (!tmp)
-               *version = '\0';
        fclose(file);
+       if (!tmp)
+               return NULL;

        name = strstr(version, prefix);
        if (!name)
--
2.20.1