diff options
| author | Bill Wendling <morbo@google.com> | 2026-09-23 04:28:25 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-09-28 17:07:33 +0100 |
| commit | a1b8188791004839aa985b18bb3b265875ff8073 (patch) | |
| tree | de3faf7cbea547e4023be5d86e39a46f297feee0 /include/linux | |
| parent | 525b772be2c03773c5cc828b4c8ea5d94f5b00ca (diff) | |
| download | linux-a1b8188791004839aa985b18bb3b265875ff8073.tar.gz linux-a1b8188791004839aa985b18bb3b265875ff8073.zip | |
iio: add __counted_by_ptr attribute to channels in struct iio_dev
In 'struct iio_dev', the 'channels' pointer refers to an array of IIO
channel specifications ('struct iio_chan_spec const'), and the size of
this array is tracked by the 'num_channels' field within the same
struct.
Applying the '__counted_by_ptr' attribute to 'channels' allows KASAN
and compiler-based bounds checkers to verify that accesses to 'channels'
remain within bounds at runtime.
Cc: codemender-patching+linux@google.com
Assisted-by: LLM
Signed-off-by: Bill Wendling <morbo@google.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/iio/iio.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 7c751e117ccc..4b16049e615a 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -660,7 +660,7 @@ struct iio_dev { struct iio_poll_func *pollfunc; struct iio_poll_func *pollfunc_event; - struct iio_chan_spec const *channels; + struct iio_chan_spec const *channels __counted_by_ptr(num_channels); int num_channels; const char *name; |