2015-02-08 16:42:12

by Nicholas Mc Guire

[permalink] [raw]
Subject: [PATCH] mtd: nand: gpmi: fixup return type of wait_for_completion_timeout

return type of wait_for_completion_timeout is unsigned long not int. The
return variable is renamed to reflect its use and the type adjusted to
unsigned long.

Signed-off-by: Nicholas Mc Guire <[email protected]>
---

Patch was only compile tested with imx_v6_v7_defconfig
(implies CONFIG_MTD_NAND_GPMI_NAND=y)

Patch is against 3.19.0-rc7 (localversion-next is -next-20150204)

drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 33f3c3c..6e44d32 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -446,7 +446,7 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
struct dma_async_tx_descriptor *desc)
{
struct completion *dma_c = &this->dma_done;
- int err;
+ unsigned long timeout;

init_completion(dma_c);

@@ -456,8 +456,8 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
dma_async_issue_pending(get_dma_chan(this));

/* Wait for the interrupt from the DMA block. */
- err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
- if (!err) {
+ timeout = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
+ if (!timeout) {
dev_err(this->dev, "DMA timeout, last DMA :%d\n",
this->last_dma_type);
gpmi_dump_info(this);
@@ -477,7 +477,7 @@ int start_dma_with_bch_irq(struct gpmi_nand_data *this,
struct dma_async_tx_descriptor *desc)
{
struct completion *bch_c = &this->bch_done;
- int err;
+ unsigned long timeout;

/* Prepare to receive an interrupt from the BCH block. */
init_completion(bch_c);
@@ -486,8 +486,8 @@ int start_dma_with_bch_irq(struct gpmi_nand_data *this,
start_dma_without_bch_irq(this, desc);

/* Wait for the interrupt from the BCH block. */
- err = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000));
- if (!err) {
+ timeout = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000));
+ if (!timeout) {
dev_err(this->dev, "BCH timeout, last DMA :%d\n",
this->last_dma_type);
gpmi_dump_info(this);
--
1.7.10.4


2015-02-08 17:58:54

by Boris Brezillon

[permalink] [raw]
Subject: Re: [PATCH] mtd: nand: gpmi: fixup return type of wait_for_completion_timeout

On Sun, 8 Feb 2015 11:37:33 -0500
Nicholas Mc Guire <[email protected]> wrote:

> return type of wait_for_completion_timeout is unsigned long not int. The
> return variable is renamed to reflect its use and the type adjusted to
> unsigned long.
>
> Signed-off-by: Nicholas Mc Guire <[email protected]>

Reviewed-by: Boris Brezillon <[email protected]>

> ---
>
> Patch was only compile tested with imx_v6_v7_defconfig
> (implies CONFIG_MTD_NAND_GPMI_NAND=y)
>
> Patch is against 3.19.0-rc7 (localversion-next is -next-20150204)
>
> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> index 33f3c3c..6e44d32 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> @@ -446,7 +446,7 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
> struct dma_async_tx_descriptor *desc)
> {
> struct completion *dma_c = &this->dma_done;
> - int err;
> + unsigned long timeout;
>
> init_completion(dma_c);
>
> @@ -456,8 +456,8 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
> dma_async_issue_pending(get_dma_chan(this));
>
> /* Wait for the interrupt from the DMA block. */
> - err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
> - if (!err) {
> + timeout = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
> + if (!timeout) {
> dev_err(this->dev, "DMA timeout, last DMA :%d\n",
> this->last_dma_type);
> gpmi_dump_info(this);
> @@ -477,7 +477,7 @@ int start_dma_with_bch_irq(struct gpmi_nand_data *this,
> struct dma_async_tx_descriptor *desc)
> {
> struct completion *bch_c = &this->bch_done;
> - int err;
> + unsigned long timeout;
>
> /* Prepare to receive an interrupt from the BCH block. */
> init_completion(bch_c);
> @@ -486,8 +486,8 @@ int start_dma_with_bch_irq(struct gpmi_nand_data *this,
> start_dma_without_bch_irq(this, desc);
>
> /* Wait for the interrupt from the BCH block. */
> - err = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000));
> - if (!err) {
> + timeout = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000));
> + if (!timeout) {
> dev_err(this->dev, "BCH timeout, last DMA :%d\n",
> this->last_dma_type);
> gpmi_dump_info(this);



--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

2015-02-10 04:03:25

by Huang Shijie

[permalink] [raw]
Subject: Re: [PATCH] mtd: nand: gpmi: fixup return type of wait_for_completion_timeout

On Sun, Feb 08, 2015 at 11:37:33AM -0500, Nicholas Mc Guire wrote:
> return type of wait_for_completion_timeout is unsigned long not int. The
> return variable is renamed to reflect its use and the type adjusted to
> unsigned long.
>
> Signed-off-by: Nicholas Mc Guire <[email protected]>
Acked-by: Huang Shijie <[email protected]>