From 869f076bd68b27e0990e3fc5036a8eb571014473 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Tue, 8 Mar 2016 17:40:53 -0300 Subject: [PATCH] [media] ati_remote: avoid fragile snprintf use Passing overlapping source and destination to snprintf is fragile. Replace with a single (mostly) equivalent call. If one wants to preserve the space preceding udev->product whether or not there was a manufacturer, just remove udev->manufacturer from the && expression. Signed-off-by: Rasmus Villemoes Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/ati_remote.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c index 3f61d77d4147..9f5b59706741 100644 --- a/drivers/media/rc/ati_remote.c +++ b/drivers/media/rc/ati_remote.c @@ -873,13 +873,10 @@ static int ati_remote_probe(struct usb_interface *interface, strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys)); strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys)); - if (udev->manufacturer) - strlcpy(ati_remote->rc_name, udev->manufacturer, - sizeof(ati_remote->rc_name)); - - if (udev->product) - snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), - "%s %s", ati_remote->rc_name, udev->product); + snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), "%s%s%s", + udev->manufacturer ?: "", + udev->manufacturer && udev->product ? " " : "", + udev->product ?: ""); if (!strlen(ati_remote->rc_name)) snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name),