This patchset fixes WLED's handling of enabled-strings: besides some cleanup it is now actually possible to specify a non-contiguous array of enabled strings (not necessarily starting at zero) and the values from DT are now validated to prevent possible unexpected out-of-bounds register and array element accesses. Off-by-one mistakes in the maximum number of strings, also causing out-of-bounds access, have been addressed as well.
Marijn Suijten (10): backlight: qcom-wled: Pass number of elements to read to read_u32_array backlight: qcom-wled: Use cpu_to_le16 macro to perform conversion backlight: qcom-wled: Override num-strings when enabled-strings is set backlight: qcom-wled: Validate enabled string indices in DT backlight: qcom-wled: Fix off-by-one maximum with default num_strings backlight: qcom-wled: Remove unnecessary 4th default string in wled3 backlight: qcom-wled: Provide enabled_strings default for wled 4 and 5 backlight: qcom-wled: Remove unnecessary double whitespace backlight: qcom-wled: Consistently use enabled-strings in set_brightness backlight: qcom-wled: Consider enabled_strings in autodetection
drivers/video/backlight/qcom-wled.c | 88 ++++++++++++++++++----------- 1 file changed, 55 insertions(+), 33 deletions(-)