Patchwork bnx2x: NULL dereference on error in debug code

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Submitter Dan Carpenter
Date Jan. 8, 2013, 1:42 p.m.
Message ID <20130108134213.GA23742@elgon.mountain>
Download mbox | patch
Permalink /patch/210381/
State Accepted
Delegated to: David Miller
Headers show

Comments

Dan Carpenter - Jan. 8, 2013, 1:42 p.m.
"vfop" is NULL here.  I've changed the debugging to not use it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Only needed in linux-next.

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Ariel Elior - Jan. 8, 2013, 2:50 p.m.
> -----Original Message-----
> From: netdev-owner@vger.kernel.org [mailto:netdev-
> owner@vger.kernel.org] On Behalf Of Dan Carpenter
> Sent: Tuesday, January 08, 2013 3:42 PM
> To: Eilon Greenstein
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
> janitors@vger.kernel.org
> Subject: [patch] bnx2x: NULL dereference on error in debug code
> 
> "vfop" is NULL here.  I've changed the debugging to not use it.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Only needed in linux-next.
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> index 71fcef0..3eef972 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> @@ -463,8 +463,7 @@ static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
>  		return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
>  					     cmd->block);
>  	}
> -	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
> -	   vf->abs_vfid, vfop->rc);
> +	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
>  	return -ENOMEM;
>  }
> 
Right you are. Ack.
Thanks Dan,
Ariel

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Ariel Elior - Jan. 8, 2013, 2:54 p.m.
> -----Original Message-----
> From: netdev-owner@vger.kernel.org [mailto:netdev-
> owner@vger.kernel.org] On Behalf Of Dan Carpenter
> Sent: Tuesday, January 08, 2013 3:42 PM
> To: Eilon Greenstein
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
> janitors@vger.kernel.org
> Subject: [patch] bnx2x: NULL dereference on error in debug code
> 
> "vfop" is NULL here.  I've changed the debugging to not use it.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Only needed in linux-next.
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> index 71fcef0..3eef972 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> @@ -463,8 +463,7 @@ static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
>  		return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
>  					     cmd->block);
>  	}
> -	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
> -	   vf->abs_vfid, vfop->rc);
> +	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
>  	return -ENOMEM;
>  }
> 
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And now acking it properly.
Acked-by Ariel Elior <ariele@broadcom.com>

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David Miller - Jan. 8, 2013, 10:30 p.m.
From: "Ariel Elior" <ariele@broadcom.com>
Date: Tue, 8 Jan 2013 14:50:50 +0000

>> -----Original Message-----
>> From: netdev-owner@vger.kernel.org [mailto:netdev-
>> owner@vger.kernel.org] On Behalf Of Dan Carpenter
>> Sent: Tuesday, January 08, 2013 3:42 PM
>> To: Eilon Greenstein
>> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
>> janitors@vger.kernel.org
>> Subject: [patch] bnx2x: NULL dereference on error in debug code
>> 
>> "vfop" is NULL here.  I've changed the debugging to not use it.
>> 
>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> ---
>> Only needed in linux-next.
>> 
>> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
>> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
>> index 71fcef0..3eef972 100644
>> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
>> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
>> @@ -463,8 +463,7 @@ static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
>>  		return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
>>  					     cmd->block);
>>  	}
>> -	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
>> -	   vf->abs_vfid, vfop->rc);
>> +	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
>>  	return -ENOMEM;
>>  }
>> 
> Right you are. Ack.

This is not the correct way to ack a patch, this is:

Acked-by: Ariel Elior <ariele@broadcom.com>
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Ariel Elior - Jan. 9, 2013, 7:38 a.m.
> -----Original Message-----
> From: netdev-owner@vger.kernel.org [mailto:netdev-
> owner@vger.kernel.org] On Behalf Of Dan Carpenter
> Sent: Tuesday, January 08, 2013 3:42 PM
> To: Eilon Greenstein
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
> janitors@vger.kernel.org
> Subject: [patch] bnx2x: NULL dereference on error in debug code
> 
> "vfop" is NULL here.  I've changed the debugging to not use it.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Only needed in linux-next.
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> index 71fcef0..3eef972 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> @@ -463,8 +463,7 @@ static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
>  		return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
>  					     cmd->block);
>  	}
> -	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
> -	   vf->abs_vfid, vfop->rc);
> +	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
>  	return -ENOMEM;
>  }
> 
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Acked-by: Ariel Elior <ariele@broadcom.com>

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David Miller - Jan. 10, 2013, 7:53 a.m.
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 8 Jan 2013 16:42:14 +0300

> "vfop" is NULL here.  I've changed the debugging to not use it.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied, thanks Dan.
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Patch

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 71fcef0..3eef972 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -463,8 +463,7 @@  static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
 		return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
 					     cmd->block);
 	}
-	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
-	   vf->abs_vfid, vfop->rc);
+	DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
 	return -ENOMEM;
 }