Re: [PATCH v2] nvmem: layouts: onie-tlv: fix hang on unknown types

[Srinivas Kandagatla <srini@kernel.org>]

On 5/8/26 6:50 AM, Andre Heider wrote:
> The EEPROM on my board has a vendor specific entry of type 0x41. When
> stumbling upon that, this driver hangs in an endless loop.
> 
> Fix it by keep incrementing the offset on unknown entries, so the loop
> will eventually stop.
> 
> Fixes: d3c0d12f6474 ("nvmem: layouts: onie-tlv: Add new layout driver")

This needs Stable tag as well, Am applying this for now but, pl make
sure that a Stable tag is added to fixes next time.

--srini

> Signed-off-by: Andre Heider <a.heider@gmail.com>
> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
> 
> Thanks for the quick review, Miquel!
> 
> Added the Fixes: tag as requested, it dates back to the initial commit.
> 
> Regards,
> Andre
> 
>  drivers/nvmem/layouts/onie-tlv.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/nvmem/layouts/onie-tlv.c b/drivers/nvmem/layouts/onie-tlv.c
> index 0967a32319a28..8b0f3c1b8a0e9 100644
> --- a/drivers/nvmem/layouts/onie-tlv.c
> +++ b/drivers/nvmem/layouts/onie-tlv.c
> @@ -119,7 +119,7 @@ static int onie_tlv_add_cells(struct device *dev, struct nvmem_device *nvmem,
>  
>  		cell.name = onie_tlv_cell_name(tlv.type);
>  		if (!cell.name)
> -			continue;
> +			goto next;
>  
>  		cell.offset = hdr_len + offset + sizeof(tlv.type) + sizeof(tlv.len);
>  		cell.bytes = tlv.len;
> @@ -132,6 +132,7 @@ static int onie_tlv_add_cells(struct device *dev, struct nvmem_device *nvmem,
>  			return ret;
>  		}
>  
> +next:
>  		offset += sizeof(tlv) + tlv.len;
>  	}
>