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Aleksei Vetrov authored
The widgets array in the snd_soc_dapm_widget_list has a __counted_by
attribute attached to it, which points to the num_widgets variable. This
attribute is used in bounds checking, and if it is not set before the
array is filled, then the bounds sanitizer will issue a warning or a
kernel panic if CONFIG_UBSAN_TRAP is set.

This patch sets the size of the widgets list calculated with
list_for_each as the initial value for num_widgets as it is used for
allocating memory for the array. It is updated with the actual number of
added elements after the array is filled.

Signed-off-by: default avatarAleksei Vetrov <vvvvvv@google.com>
Fixes: 80e698e2 ("ASoC: soc-dapm: Annotate struct snd_soc_dapm_widget_list with __counted_by")
Link: https://patch.msgid.link/20241028-soc-dapm-bounds-checker-fix-v1-1-262b0394e89e@google.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
2ef9439f
Linux kernel
============

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In order to build the documentation, use ``make htmldocs`` or
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There are various text files in the Documentation/ subdirectory,
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