From 46bc78c81b65044fa7bd4781e6501b756b3a86bc Mon Sep 17 00:00:00 2001 From: "Jiri Slaby (SUSE)" Date: Wed, 16 Aug 2023 12:55:22 +0200 Subject: tty: tty_buffer: use struct_size() in tty_buffer_alloc() Now, that tty_buffer::data has the right type, use struct_size() for size calculation. struct_size() makes the code less error-prone and more readable. Signed-off-by: "Jiri Slaby (SUSE)" Link: https://lore.kernel.org/r/20230816105530.3335-3-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_buffer.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/tty/tty_buffer.c') diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 684d099cbe11..c94df1a2d7f8 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -177,8 +177,7 @@ static struct tty_buffer *tty_buffer_alloc(struct tty_port *port, size_t size) */ if (atomic_read(&port->buf.mem_used) > port->buf.mem_limit) return NULL; - p = kmalloc(sizeof(struct tty_buffer) + 2 * size, - GFP_ATOMIC | __GFP_NOWARN); + p = kmalloc(struct_size(p, data, 2 * size), GFP_ATOMIC | __GFP_NOWARN); if (p == NULL) return NULL; -- cgit v1.2.3