> -----Original Message-----
> From: Intel-wired-lan [mailto:[email protected]] On Behalf
> Of Colin King
> Sent: Friday, August 02, 2019 8:52 AM
> To: Kirsher, Jeffrey T <[email protected]>; David S . Miller
> <[email protected]>; [email protected];
> [email protected]
> Cc: [email protected]; [email protected]
> Subject: [Intel-wired-lan] [PATCH][net-next] ice: fix potential infinite loop
>
> From: Colin Ian King <[email protected]>
>
> The loop counter of a for-loop is a u8 however this is being compared
> to an int upper bound and this can lead to an infinite loop if the
> upper bound is greater than 255 since the loop counter will wrap back
> to zero. Fix this potential issue by making the loop counter an int.
>
> Addresses-Coverity: ("Infinite loop")
Actually, num_alloc_vfs should probably be a u16 instead of an int since
num_alloc_vfs cannot exceed 256.
Which Coverity scan reported this and what options are used in the analysis?
> Fixes: c7aeb4d1b9bf ("ice: Disable VFs until reset is completed")
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> drivers/net/ethernet/intel/ice/ice_main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/intel/ice/ice_main.c
> b/drivers/net/ethernet/intel/ice/ice_main.c
> index c26e6a102dac..088543d50095 100644
> --- a/drivers/net/ethernet/intel/ice/ice_main.c
> +++ b/drivers/net/ethernet/intel/ice/ice_main.c
> @@ -488,7 +488,7 @@ static void
> ice_prepare_for_reset(struct ice_pf *pf)
> {
> struct ice_hw *hw = &pf->hw;
> - u8 i;
> + int i;
>
> /* already prepared for reset */
> if (test_bit(__ICE_PREPARED_FOR_RESET, pf->state))
> --
> 2.20.1
>
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