[PATCH] agp: Use kcalloc() as a hardening measure

From: Dan Carpenter
Date: Mon Feb 28 2022 - 02:45:29 EST


The advantage of the kcalloc() function is that it checks for integer
overflows. We should use it where ever possible as a safety measure.
Plus it is nicer for style reasons as well.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/char/agp/frontend.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 321118a9cfa5..25b27ca0ab47 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -167,7 +167,7 @@ int agp_create_segment(struct agp_client *client, struct agp_region *region)
struct agp_segment *user_seg;
size_t i;

- seg = kzalloc((sizeof(struct agp_segment_priv) * region->seg_count), GFP_KERNEL);
+ seg = kcalloc(region->seg_count, sizeof(struct agp_segment_priv), GFP_KERNEL);
if (seg == NULL) {
kfree(region->seg_list);
region->seg_list = NULL;
--
2.20.1