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| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:11:00 -0700 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:32 +0000 |
| commit | 0847c33bafe5b58f2f223153c007c1e185f84f48 (patch) | |
| tree | 94ba67c74508283fa5a9f788e562c584b93c1808 /drivers/leds | |
| parent | bcbadbb29cb6aa6f51505514ae635fd467ebca43 (diff) | |
| download | linux-0847c33bafe5b58f2f223153c007c1e185f84f48.tar.gz | |
leds: qcom-lpg: Annotate struct lpg_led 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 lpg_led.
[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>
Link: https://lore.kernel.org/r/20230915201059.never.086-kees@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/rgb/leds-qcom-lpg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/rgb/leds-qcom-lpg.c b/drivers/leds/rgb/leds-qcom-lpg.c index df469aaa7e6e7e..7d93e02a030a25 100644 --- a/drivers/leds/rgb/leds-qcom-lpg.c +++ b/drivers/leds/rgb/leds-qcom-lpg.c @@ -173,7 +173,7 @@ struct lpg_led { struct led_classdev_mc mcdev; unsigned int num_channels; - struct lpg_channel *channels[]; + struct lpg_channel *channels[] __counted_by(num_channels); }; /** |