b43legacy/leds: Ensure NUL-termination of LED name string

commit 4d77a89e3924b12f4a5628b21237e57ab4703866 upstream.

strncpy might not NUL-terminate the string, if the name equals the buffer size.
Use strlcpy instead.

Signed-off-by: Michael Buesch <m@bues.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/broadcom/b43legacy/leds.c b/drivers/net/wireless/broadcom/b43legacy/leds.c
index fd45653..bc92211 100644 (file)
--- a/drivers/net/wireless/broadcom/b43legacy/leds.c
+++ b/drivers/net/wireless/broadcom/b43legacy/leds.c
@@ -101,7 +101,7 @@ static int b43legacy_register_led(struct b43legacy_wldev *dev,
        led->dev = dev;
        led->index = led_index;
        led->activelow = activelow;
-       strncpy(led->name, name, sizeof(led->name));
+       strlcpy(led->name, name, sizeof(led->name));
 
        led->led_dev.name = led->name;
        led->led_dev.default_trigger = default_trigger;