* [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe()
@ 2017-04-25 9:19 Dan Carpenter
2017-04-25 9:42 ` Neil Armstrong
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Dan Carpenter @ 2017-04-25 9:19 UTC (permalink / raw)
To: Boris Brezillon, Neil Armstrong
Cc: Richard Weinberger, David Woodhouse, Brian Norris, Marek Vasut,
Cyrille Pitchen, linux-mtd, linux-oxnas, kernel-janitors
We only need to allocate sizeof(struct oxnas_nand_ctrl) which is 192
bytes and not sizeof(struct nand_chip) which is a much larger 3056
bytes.
Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c
index 3e3bf3b364d2..1b207aac840c 100644
--- a/drivers/mtd/nand/oxnas_nand.c
+++ b/drivers/mtd/nand/oxnas_nand.c
@@ -91,7 +91,7 @@ static int oxnas_nand_probe(struct platform_device *pdev)
int err = 0;
/* Allocate memory for the device structure (and zero it) */
- oxnas = devm_kzalloc(&pdev->dev, sizeof(struct nand_chip),
+ oxnas = devm_kzalloc(&pdev->dev, sizeof(*oxnas),
GFP_KERNEL);
if (!oxnas)
return -ENOMEM;
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe()
2017-04-25 9:19 [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe() Dan Carpenter
@ 2017-04-25 9:42 ` Neil Armstrong
2017-05-02 16:19 ` Boris Brezillon
2017-05-03 1:58 ` Brian Norris
2 siblings, 0 replies; 4+ messages in thread
From: Neil Armstrong @ 2017-04-25 9:42 UTC (permalink / raw)
To: Dan Carpenter, Boris Brezillon
Cc: Richard Weinberger, David Woodhouse, Brian Norris, Marek Vasut,
Cyrille Pitchen, linux-mtd, linux-oxnas, kernel-janitors
On 04/25/2017 11:19 AM, Dan Carpenter wrote:
> We only need to allocate sizeof(struct oxnas_nand_ctrl) which is 192
> bytes and not sizeof(struct nand_chip) which is a much larger 3056
> bytes.
>
> Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c
> index 3e3bf3b364d2..1b207aac840c 100644
> --- a/drivers/mtd/nand/oxnas_nand.c
> +++ b/drivers/mtd/nand/oxnas_nand.c
> @@ -91,7 +91,7 @@ static int oxnas_nand_probe(struct platform_device *pdev)
> int err = 0;
>
> /* Allocate memory for the device structure (and zero it) */
> - oxnas = devm_kzalloc(&pdev->dev, sizeof(struct nand_chip),
> + oxnas = devm_kzalloc(&pdev->dev, sizeof(*oxnas),
> GFP_KERNEL);
> if (!oxnas)
> return -ENOMEM;
>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe()
2017-04-25 9:19 [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe() Dan Carpenter
2017-04-25 9:42 ` Neil Armstrong
@ 2017-05-02 16:19 ` Boris Brezillon
2017-05-03 1:58 ` Brian Norris
2 siblings, 0 replies; 4+ messages in thread
From: Boris Brezillon @ 2017-05-02 16:19 UTC (permalink / raw)
To: Dan Carpenter
Cc: Neil Armstrong, Richard Weinberger, David Woodhouse, Brian Norris,
Marek Vasut, Cyrille Pitchen, linux-mtd, linux-oxnas,
kernel-janitors
On Tue, 25 Apr 2017 12:19:49 +0300
Dan Carpenter <dan.carpenter@oracle.com> wrote:
> We only need to allocate sizeof(struct oxnas_nand_ctrl) which is 192
> bytes and not sizeof(struct nand_chip) which is a much larger 3056
> bytes.
>
> Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
>
> diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c
> index 3e3bf3b364d2..1b207aac840c 100644
> --- a/drivers/mtd/nand/oxnas_nand.c
> +++ b/drivers/mtd/nand/oxnas_nand.c
> @@ -91,7 +91,7 @@ static int oxnas_nand_probe(struct platform_device *pdev)
> int err = 0;
>
> /* Allocate memory for the device structure (and zero it) */
> - oxnas = devm_kzalloc(&pdev->dev, sizeof(struct nand_chip),
> + oxnas = devm_kzalloc(&pdev->dev, sizeof(*oxnas),
> GFP_KERNEL);
> if (!oxnas)
> return -ENOMEM;
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe()
2017-04-25 9:19 [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe() Dan Carpenter
2017-04-25 9:42 ` Neil Armstrong
2017-05-02 16:19 ` Boris Brezillon
@ 2017-05-03 1:58 ` Brian Norris
2 siblings, 0 replies; 4+ messages in thread
From: Brian Norris @ 2017-05-03 1:58 UTC (permalink / raw)
To: Dan Carpenter
Cc: Boris Brezillon, Neil Armstrong, Richard Weinberger,
David Woodhouse, Marek Vasut, Cyrille Pitchen, linux-mtd,
linux-oxnas, kernel-janitors
On Tue, Apr 25, 2017 at 12:19:49PM +0300, Dan Carpenter wrote:
> We only need to allocate sizeof(struct oxnas_nand_ctrl) which is 192
> bytes and not sizeof(struct nand_chip) which is a much larger 3056
> bytes.
>
> Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Applied to l2-mtd.git
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-05-03 1:58 UTC | newest]
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2017-04-25 9:19 [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe() Dan Carpenter
2017-04-25 9:42 ` Neil Armstrong
2017-05-02 16:19 ` Boris Brezillon
2017-05-03 1:58 ` Brian Norris
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