[PATCH v3 1/4] iio: proximity: hx9023s: fix assignment order for __counted_by

Yasin Lee posted 4 patches 1 month, 2 weeks ago
[PATCH v3 1/4] iio: proximity: hx9023s: fix assignment order for __counted_by
Posted by Yasin Lee 1 month, 2 weeks ago
Initialize fw_size before copying firmware data into the flexible
array member to match the __counted_by() annotation. This fixes the
incorrect assignment order that triggers runtime safety checks.

Fixes: e9ed97be4fcc ("iio: proximity: hx9023s: Added firmware file parsing functionality")
Signed-off-by: Yasin Lee <yasin.lee.x@gmail.com>
---
 drivers/iio/proximity/hx9023s.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023s.c
index 2918dfc0df54..ad839db6b326 100644
--- a/drivers/iio/proximity/hx9023s.c
+++ b/drivers/iio/proximity/hx9023s.c
@@ -1034,9 +1034,8 @@ static int hx9023s_send_cfg(const struct firmware *fw, struct hx9023s_data *data
 	if (!bin)
 		return -ENOMEM;
 
-	memcpy(bin->data, fw->data, fw->size);
-
 	bin->fw_size = fw->size;
+	memcpy(bin->data, fw->data, bin->fw_size);
 	bin->fw_ver = bin->data[FW_VER_OFFSET];
 	bin->reg_count = get_unaligned_le16(bin->data + FW_REG_CNT_OFFSET);
 

-- 
2.43.0
Re: [PATCH v3 1/4] iio: proximity: hx9023s: fix assignment order for __counted_by
Posted by Yasin Lee 1 month, 2 weeks ago
Hi Andy, Krzysztof,

Thank you both for the review and for the valuable feedback on this series.
Regarding Patch 1, I have refined the commit message to accurately
describe the __counted_by requirement.
If there are no further concerns on this specific fix, may I have your
tags so I can include them in v4?

Thanks again for your time and guidance!

Best regards,
Yasin Lee


On Fri, Feb 13, 2026 at 11:22 PM Yasin Lee <yasin.lee.x@gmail.com> wrote:
>
> Initialize fw_size before copying firmware data into the flexible
> array member to match the __counted_by() annotation. This fixes the
> incorrect assignment order that triggers runtime safety checks.
>
> Fixes: e9ed97be4fcc ("iio: proximity: hx9023s: Added firmware file parsing functionality")
> Signed-off-by: Yasin Lee <yasin.lee.x@gmail.com>
> ---
>  drivers/iio/proximity/hx9023s.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023s.c
> index 2918dfc0df54..ad839db6b326 100644
> --- a/drivers/iio/proximity/hx9023s.c
> +++ b/drivers/iio/proximity/hx9023s.c
> @@ -1034,9 +1034,8 @@ static int hx9023s_send_cfg(const struct firmware *fw, struct hx9023s_data *data
>         if (!bin)
>                 return -ENOMEM;
>
> -       memcpy(bin->data, fw->data, fw->size);
> -
>         bin->fw_size = fw->size;
> +       memcpy(bin->data, fw->data, bin->fw_size);
>         bin->fw_ver = bin->data[FW_VER_OFFSET];
>         bin->reg_count = get_unaligned_le16(bin->data + FW_REG_CNT_OFFSET);
>
>
> --
> 2.43.0
>