Re: [PATCH v2 1/2] nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac()

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On Thu, Feb 10, 2022 at 11:34:52PM +0100, Christophe JAILLET wrote:
> ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX)
> inclusive.
> So NFP_MAX_MAC_INDEX (0xff) is a valid id.
> 
> In order for the error handling path to work correctly, the 'invalid'
> value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range,
> inclusive.
> 
> So set it to -1.
> 
> Fixes: 20cce8865098 ("nfp: flower: enable MAC address sharing for offloadable devs")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

Thanks again for finding and fixing this.

Acked-by: Simon Horman <simon.horman@xxxxxxxxxxxx>



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