RE: [patch 2/2] megaraid_sas: missing curly braces in megasas_detach_one()

2015-11-10 Thread Kashyap Desai
> -Original Message-
> From: Dan Carpenter [mailto:dan.carpen...@oracle.com]
> Sent: Saturday, November 07, 2015 9:47 PM
> To: Kashyap Desai; Sumit Saxena
> Cc: Uday Lingala; James E.J. Bottomley; megaraidlinux@avagotech.com;
> linux-scsi@vger.kernel.org; kernel-janit...@vger.kernel.org
> Subject: [patch 2/2] megaraid_sas: missing curly braces in
> megasas_detach_one()
>
> The indenting indicates that there are supposed to be some curly braces
> here.  Presumably it means we free something unintentionally leading to
a
> use after free.

NACK. Indentation is wrong. We don't need to add braces. We will fix
indentation and resend patch. Since this is not critical, let's ignore for
now.
>
> Fixes: 3761cb4cf65e ('megaraid_sas: JBOD sequence number support')
> Signed-off-by: Dan Carpenter 
> ---
> Not tested.
>
> diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c
> b/drivers/scsi/megaraid/megaraid_sas_base.c
> index 829e9e9..91e200d 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> @@ -5932,7 +5932,7 @@ static void megasas_detach_one(struct pci_dev
> *pdev)
> fusion->max_map_sz,
> fusion->ld_map[i],
> fusion->ld_map_phys[i]);
> - if (fusion->ld_drv_map[i])
> + if (fusion->ld_drv_map[i]) {
>   free_pages((ulong)fusion->ld_drv_map[i],
>   fusion->drv_map_pages);
>   if (fusion->pd_seq_sync)
> @@ -5940,6 +5940,7 @@ static void megasas_detach_one(struct pci_dev
> *pdev)
>   pd_seq_map_sz,
>   fusion->pd_seq_sync[i],
>   fusion->pd_seq_phys[i]);
> + }
>   }
>   free_pages((ulong)instance->ctrl_context,
>   instance->ctrl_context_pages);
--
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[patch 2/2] megaraid_sas: missing curly braces in megasas_detach_one()

2015-11-07 Thread Dan Carpenter
The indenting indicates that there are supposed to be some curly braces
here.  Presumably it means we free something unintentionally leading to
a use after free.

Fixes: 3761cb4cf65e ('megaraid_sas: JBOD sequence number support')
Signed-off-by: Dan Carpenter 
---
Not tested.

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c 
b/drivers/scsi/megaraid/megaraid_sas_base.c
index 829e9e9..91e200d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5932,7 +5932,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
  fusion->max_map_sz,
  fusion->ld_map[i],
  fusion->ld_map_phys[i]);
-   if (fusion->ld_drv_map[i])
+   if (fusion->ld_drv_map[i]) {
free_pages((ulong)fusion->ld_drv_map[i],
fusion->drv_map_pages);
if (fusion->pd_seq_sync)
@@ -5940,6 +5940,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
pd_seq_map_sz,
fusion->pd_seq_sync[i],
fusion->pd_seq_phys[i]);
+   }
}
free_pages((ulong)instance->ctrl_context,
instance->ctrl_context_pages);
--
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