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[media] ati_remote: avoid fragile snprintf use

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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 <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Rasmus Villemoes 2016-03-08 17:40:53 -03:00 • committed by Mauro Carvalho Chehab
commit 869f076bd6
1 changed files with 4 additions and 7 deletions
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11
drivers/media/rc/ati_remote.c
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@ -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),