* [PATCH] snic: Return error code on memory allocation failure
@ 2016-12-21 13:45 Burak Ok
2016-12-21 15:07 ` Narsimhulu Musini (nmusini)
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Burak Ok @ 2016-12-21 13:45 UTC (permalink / raw)
To: linux-kernel
Cc: linux-scsi, Martin K Petersen, James E J Bottomley,
Sesidhar Baddela, Karan Tilak Kumar, Narsimhulu Musini,
linux-kernel, Burak Ok, Andreas Schaertl
If a call to mempool_create_slab_pool() in snic_probe() returns NULL,
return -ENOMEM to indicate failure. mempool_creat_slab_pool() only fails if
it cannot allocate memory.
https://bugzilla.kernel.org/show_bug.cgi?id=189061
Reported-by: bianpan2010@ruc.edu.cn
Signed-off-by: Burak Ok <burak-kernel@bur0k.de>
Signed-off-by: Andreas Schaertl <andreas.schaertl@fau.de>
---
drivers/scsi/snic/snic_main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c
index 396b32d..7cf70aa 100644
--- a/drivers/scsi/snic/snic_main.c
+++ b/drivers/scsi/snic/snic_main.c
@@ -591,6 +591,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!pool) {
SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
+ ret = -ENOMEM;
goto err_free_res;
}
@@ -601,6 +602,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!pool) {
SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
+ ret = -ENOMEM;
goto err_free_dflt_sgl_pool;
}
@@ -611,6 +613,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!pool) {
SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
+ ret = -ENOMEM;
goto err_free_max_sgl_pool;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] snic: Return error code on memory allocation failure
2016-12-21 13:45 [PATCH] snic: Return error code on memory allocation failure Burak Ok
@ 2016-12-21 15:07 ` Narsimhulu Musini (nmusini)
2016-12-21 16:31 ` Ewan D. Milne
2017-01-06 1:46 ` Martin K. Petersen
2 siblings, 0 replies; 4+ messages in thread
From: Narsimhulu Musini (nmusini) @ 2016-12-21 15:07 UTC (permalink / raw)
To: Burak Ok, linux-kernel
Cc: linux-scsi, Martin K Petersen, James E J Bottomley,
Sesidhar Baddela (sebaddel), Karan Tilak Kumar (kartilak),
linux-kernel, Andreas Schaertl
On 21/12/16 7:15 pm, "Burak Ok" <burak-kernel@bur0k.de> wrote:
>If a call to mempool_create_slab_pool() in snic_probe() returns NULL,
>return -ENOMEM to indicate failure. mempool_creat_slab_pool() only fails
>if
>it cannot allocate memory.
>
>https://bugzilla.kernel.org/show_bug.cgi?id=189061
>
>Reported-by: bianpan2010@ruc.edu.cn
>Signed-off-by: Burak Ok <burak-kernel@bur0k.de>
>Signed-off-by: Andreas Schaertl <andreas.schaertl@fau.de>
Acked-by: Narsimhulu Musini <nmusini@cisco.com>
>---
> drivers/scsi/snic/snic_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c
>index 396b32d..7cf70aa 100644
>--- a/drivers/scsi/snic/snic_main.c
>+++ b/drivers/scsi/snic/snic_main.c
>@@ -591,6 +591,7 @@ snic_probe(struct pci_dev *pdev, const struct
>pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
>
>+ ret = -ENOMEM;
> goto err_free_res;
> }
>
>@@ -601,6 +602,7 @@ snic_probe(struct pci_dev *pdev, const struct
>pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
>
>+ ret = -ENOMEM;
> goto err_free_dflt_sgl_pool;
> }
>
>@@ -611,6 +613,7 @@ snic_probe(struct pci_dev *pdev, const struct
>pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
>
>+ ret = -ENOMEM;
> goto err_free_max_sgl_pool;
> }
>
>--
>2.7.4
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] snic: Return error code on memory allocation failure
2016-12-21 13:45 [PATCH] snic: Return error code on memory allocation failure Burak Ok
2016-12-21 15:07 ` Narsimhulu Musini (nmusini)
@ 2016-12-21 16:31 ` Ewan D. Milne
2017-01-06 1:46 ` Martin K. Petersen
2 siblings, 0 replies; 4+ messages in thread
From: Ewan D. Milne @ 2016-12-21 16:31 UTC (permalink / raw)
To: Burak Ok
Cc: linux-kernel, linux-scsi, Martin K Petersen, James E J Bottomley,
Sesidhar Baddela, Karan Tilak Kumar, Narsimhulu Musini,
linux-kernel, Andreas Schaertl
On Wed, 2016-12-21 at 14:45 +0100, Burak Ok wrote:
> If a call to mempool_create_slab_pool() in snic_probe() returns NULL,
> return -ENOMEM to indicate failure. mempool_creat_slab_pool() only fails if
> it cannot allocate memory.
>
> https://bugzilla.kernel.org/show_bug.cgi?id=189061
>
> Reported-by: bianpan2010@ruc.edu.cn
> Signed-off-by: Burak Ok <burak-kernel@bur0k.de>
> Signed-off-by: Andreas Schaertl <andreas.schaertl@fau.de>
> ---
> drivers/scsi/snic/snic_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c
> index 396b32d..7cf70aa 100644
> --- a/drivers/scsi/snic/snic_main.c
> +++ b/drivers/scsi/snic/snic_main.c
> @@ -591,6 +591,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
>
> + ret = -ENOMEM;
> goto err_free_res;
> }
>
> @@ -601,6 +602,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
>
> + ret = -ENOMEM;
> goto err_free_dflt_sgl_pool;
> }
>
> @@ -611,6 +613,7 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> if (!pool) {
> SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
>
> + ret = -ENOMEM;
> goto err_free_max_sgl_pool;
> }
>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] snic: Return error code on memory allocation failure
2016-12-21 13:45 [PATCH] snic: Return error code on memory allocation failure Burak Ok
2016-12-21 15:07 ` Narsimhulu Musini (nmusini)
2016-12-21 16:31 ` Ewan D. Milne
@ 2017-01-06 1:46 ` Martin K. Petersen
2 siblings, 0 replies; 4+ messages in thread
From: Martin K. Petersen @ 2017-01-06 1:46 UTC (permalink / raw)
To: Burak Ok
Cc: linux-kernel, linux-scsi, Martin K Petersen, James E J Bottomley,
Sesidhar Baddela, Karan Tilak Kumar, Narsimhulu Musini,
linux-kernel, Andreas Schaertl
>>>>> "Burak" == Burak Ok <burak-kernel@bur0k.de> writes:
Burak> If a call to mempool_create_slab_pool() in snic_probe() returns
Burak> NULL, return -ENOMEM to indicate
Burak> failure. mempool_creat_slab_pool() only fails if it cannot
Burak> allocate memory.
Applied to 4.10/scsi-fixes.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 4+ messages in thread
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2016-12-21 13:45 [PATCH] snic: Return error code on memory allocation failure Burak Ok
2016-12-21 15:07 ` Narsimhulu Musini (nmusini)
2016-12-21 16:31 ` Ewan D. Milne
2017-01-06 1:46 ` Martin K. Petersen
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