[PATCH 2/6] tty_audit: use kzalloc() in tty_audit_buf_alloc()

From: Jiri Slaby (SUSE)
Date: Wed Jun 21 2023 - 06:16:45 EST


tty_audit_buf_alloc() manually erases most of the entries after
kmalloc(). So use kzalloc() and remove the manual sets to zero.

That way, we are sure that we do not omit anything.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
---
drivers/tty/tty_audit.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c
index b98b1aef5f6f..43f34465b9df 100644
--- a/drivers/tty/tty_audit.c
+++ b/drivers/tty/tty_audit.c
@@ -33,16 +33,16 @@ static struct tty_audit_buf *tty_audit_buf_alloc(void)
{
struct tty_audit_buf *buf;

- buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+ buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
goto err;
+
buf->data = kmalloc(N_TTY_BUF_SIZE, GFP_KERNEL);
if (!buf->data)
goto err_buf;
+
mutex_init(&buf->mutex);
- buf->dev = MKDEV(0, 0);
- buf->icanon = 0;
- buf->valid = 0;
+
return buf;

err_buf:
--
2.41.0