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| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:10:20 -0700 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:40 +0000 |
| commit | 476301c15d44831413b94d54f248233b14c0ad85 (patch) | |
| tree | c4f7a4aefff01eedccf498e5215c0edb38fb1980 /drivers/leds | |
| parent | 6061302092305a0584aacf0d82a9d5e66653884c (diff) | |
| download | linux-476301c15d44831413b94d54f248233b14c0ad85.tar.gz | |
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')
| -rw-r--r-- | drivers/leds/flash/leds-mt6360.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/flash/leds-mt6360.c b/drivers/leds/flash/leds-mt6360.c index 81401c481e2b9..a90de82f45683 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, |