From 476301c15d44831413b94d54f248233b14c0ad85 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 15 Sep 2023 13:10:20 -0700 Subject: leds: mt6360: Annotate struct mt6360_priv with __counted_by Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct mt6360_priv. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20230915201020.never.433-kees@kernel.org Signed-off-by: Lee Jones --- drivers/leds/flash/leds-mt6360.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/leds/flash') diff --git a/drivers/leds/flash/leds-mt6360.c b/drivers/leds/flash/leds-mt6360.c index 81401c481e2b..a90de82f4568 100644 --- a/drivers/leds/flash/leds-mt6360.c +++ b/drivers/leds/flash/leds-mt6360.c @@ -91,7 +91,7 @@ struct mt6360_priv { unsigned int fled_torch_used; unsigned int leds_active; unsigned int leds_count; - struct mt6360_led leds[]; + struct mt6360_led leds[] __counted_by(leds_count); }; static int mt6360_mc_brightness_set(struct led_classdev *lcdev, -- cgit v1.2.3