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* [PATCH] HSI: ssi_protocol: fix potential resource leak in ssip_pn_open()
@ 2022-09-05  7:48 Jianglei Nie
  2022-09-20 15:48 ` Sebastian Reichel
  0 siblings, 1 reply; 2+ messages in thread
From: Jianglei Nie @ 2022-09-05  7:48 UTC (permalink / raw)
  To: sre, kuba; +Cc: linux-kernel, Jianglei Nie

ssip_pn_open() claims the HSI client's port with hsi_claim_port(). When
hsi_register_port_event() gets some error and returns a negetive value,
the HSI client's port should be released with hsi_release_port().

Fix it by calling hsi_release_port() when hsi_register_port_event() fails.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
---
 drivers/hsi/clients/ssi_protocol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c
index 21f11a5b965b..49ffd808d17f 100644
--- a/drivers/hsi/clients/ssi_protocol.c
+++ b/drivers/hsi/clients/ssi_protocol.c
@@ -931,6 +931,7 @@ static int ssip_pn_open(struct net_device *dev)
 	if (err < 0) {
 		dev_err(&cl->device, "Register HSI port event failed (%d)\n",
 			err);
+		hsi_release_port(cl);
 		return err;
 	}
 	dev_dbg(&cl->device, "Configuring SSI port\n");
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] HSI: ssi_protocol: fix potential resource leak in ssip_pn_open()
  2022-09-05  7:48 [PATCH] HSI: ssi_protocol: fix potential resource leak in ssip_pn_open() Jianglei Nie
@ 2022-09-20 15:48 ` Sebastian Reichel
  0 siblings, 0 replies; 2+ messages in thread
From: Sebastian Reichel @ 2022-09-20 15:48 UTC (permalink / raw)
  To: Jianglei Nie; +Cc: kuba, linux-kernel

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Hi,

On Mon, Sep 05, 2022 at 03:48:01PM +0800, Jianglei Nie wrote:
> ssip_pn_open() claims the HSI client's port with hsi_claim_port(). When
> hsi_register_port_event() gets some error and returns a negetive value,
> the HSI client's port should be released with hsi_release_port().
> 
> Fix it by calling hsi_release_port() when hsi_register_port_event() fails.
> 
> Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
> ---
>  drivers/hsi/clients/ssi_protocol.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c
> index 21f11a5b965b..49ffd808d17f 100644
> --- a/drivers/hsi/clients/ssi_protocol.c
> +++ b/drivers/hsi/clients/ssi_protocol.c
> @@ -931,6 +931,7 @@ static int ssip_pn_open(struct net_device *dev)
>  	if (err < 0) {
>  		dev_err(&cl->device, "Register HSI port event failed (%d)\n",
>  			err);
> +		hsi_release_port(cl);
>  		return err;
>  	}
>  	dev_dbg(&cl->device, "Configuring SSI port\n");

Thanks, queued.

-- Sebastian

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^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-09-20 15:49 UTC | newest]

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2022-09-05  7:48 [PATCH] HSI: ssi_protocol: fix potential resource leak in ssip_pn_open() Jianglei Nie
2022-09-20 15:48 ` Sebastian Reichel

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