From: Jeff Mahoney <jeffm@xxxxxxxx>
The memset call in check_cpu_map always clears sizeof(unsigned long *)
regardless of what size was allocated. Use calloc instead to allocate
the map so it's zeroed properly regardless of the size requested.
Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>
---
blkparse.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/blkparse.c b/blkparse.c
index 498857c..9d2029a 100644
--- a/blkparse.c
+++ b/blkparse.c
@@ -2236,8 +2236,7 @@ static int check_cpu_map(struct per_dev_info *pdi)
/*
* create a map of the cpus we have traces for
*/
- cpu_map = malloc(pdi->cpu_map_max / sizeof(long));
- memset(cpu_map, 0, sizeof(*cpu_map));
+ cpu_map = calloc(1, pdi->cpu_map_max / sizeof(long));
n = rb_first(&rb_sort_root);
while (n) {
__t = rb_entry(n, struct trace, rb_node);
--
2.33.1
