linux-kernel - RE: [Intel-wired-lan] [PATCH] ixgbe: Fix an error handling path in ixgbe_read_iosf_sb_reg

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Date: Mon, 29 Jan 2024 05:06:14 +0000
From: "Pucha, HimasekharX Reddy" <himasekharx.reddy.pucha@...el.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>, "Brandeburg, Jesse"
	<jesse.brandeburg@...el.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "David S. Miller" <davem@...emloft.net>, "Eric
 Dumazet" <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Jeff Kirsher <jeffrey.t.kirsher@...el.com>, "Rustad,
 Mark D" <mark.d.rustad@...el.com>
CC: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH] ixgbe: Fix an error handling path in
 ixgbe_read_iosf_sb_reg_x550()

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Christophe JAILLET
> Sent: Saturday, January 20, 2024 10:56 PM
> To: Brandeburg, Jesse <jesse.brandeburg@...el.com>; Nguyen, Anthony L <anthony.l.nguyen@...el.com>; David S. Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; Jeff Kirsher <jeffrey.t.kirsher@...el.com>; Rustad, Mark D <mark.d.rustad@...el.com>
> Cc: Christophe JAILLET <christophe.jaillet@...adoo.fr>; intel-wired-lan@...ts.osuosl.org; kernel-janitors@...r.kernel.org; linux-kernel@...r.kernel.org; netdev@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH] ixgbe: Fix an error handling path in ixgbe_read_iosf_sb_reg_x550()
>
> All error handling paths, except this one, go to 'out' where
> release_swfw_sync() is called.
> This call balances the acquire_swfw_sync() call done at the beginning of
> the function.
>
> Branch to the error handling path in order to correctly release some
> resources in case of error.
>
> Fixes: ae14a1d8e104 ("ixgbe: Fix IOSF SB access issues")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> This patch is speculative, review with care.
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>

Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)