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authorKees Cook <keescook@chromium.org>2023-09-15 23:10:20 +0300
committerLee Jones <lee@kernel.org>2023-11-01 14:28:40 +0300
commit476301c15d44831413b94d54f248233b14c0ad85 (patch)
treec4f7a4aefff01eedccf498e5215c0edb38fb1980 /drivers/leds/flash
parent6061302092305a0584aacf0d82a9d5e66653884c (diff)
downloadlinux-476301c15d44831413b94d54f248233b14c0ad85.tar.xz
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 <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230915201020.never.433-kees@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds/flash')
-rw-r--r--drivers/leds/flash/leds-mt6360.c2
1 files changed, 1 insertions, 1 deletions
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,