diff mbox

[v2,3/3] nand: omap2: Replace pr_err with dev_err

Message ID 1410175636-4036-4-git-send-email-ezequiel@vanguardiasur.com.ar (mailing list archive)
State New, archived
Headers show

Commit Message

Ezequiel Garcia Sept. 8, 2014, 11:27 a.m. UTC
Usage of pr_err is frowned upon, so replace it with dev_err.
Aditionally, the message on nand_bch_init() error is redundant,
since proper error is showed if the function fails.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/mtd/nand/omap2.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

Comments

Roger Quadros Sept. 8, 2014, 11:57 a.m. UTC | #1
Hi Ezequiel,

On 09/08/2014 02:27 PM, Ezequiel Garcia wrote:
> Usage of pr_err is frowned upon, so replace it with dev_err.
> Aditionally, the message on nand_bch_init() error is redundant,
> since proper error is showed if the function fails.
> 
> Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
> ---
>  drivers/mtd/nand/omap2.c | 26 ++++++++++++++------------
>  1 file changed, 14 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
> index f97a4ff..eb5e898 100644
> --- a/drivers/mtd/nand/omap2.c
> +++ b/drivers/mtd/nand/omap2.c
> @@ -1375,7 +1375,7 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>  		erased_ecc_vec = bch16_vector;
>  		break;
>  	default:
> -		pr_err("invalid driver configuration\n");
> +		dev_err(&info->pdev->dev, "invalid driver configuration\n");
>  		return -EINVAL;
>  	}
>  
> @@ -1446,7 +1446,8 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>  	err = 0;
>  	for (i = 0; i < eccsteps; i++) {
>  		if (err_vec[i].error_uncorrectable) {
> -			pr_err("nand: uncorrectable bit-flips found\n");
> +			dev_err(&info->pdev->dev,
> +				"uncorrectable bit-flips found\n");
>  			err = -EBADMSG;
>  		} else if (err_vec[i].error_reported) {
>  			for (j = 0; j < err_vec[i].error_count; j++) {
> @@ -1483,8 +1484,9 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>  							1 << bit_pos;
>  					}
>  				} else {
> -					pr_err("invalid bit-flip @ %d:%d\n",
> -							 byte_pos, bit_pos);
> +					dev_err(&info->pdev->dev,
> +						"invalid bit-flip @ %d:%d\n",
> +						byte_pos, bit_pos);
>  					err = -EBADMSG;
>  				}
>  			}
> @@ -1598,13 +1600,13 @@ static bool is_elm_present(struct omap_nand_info *info,
>  
>  	/* check whether elm-id is passed via DT */
>  	if (!elm_node) {
> -		pr_err("nand: error: ELM DT node not found\n");
> +		dev_err(&info->pdev->dev, "ELM devicetree node not found\n");
>  		return false;
>  	}
>  	pdev = of_find_device_by_node(elm_node);
>  	/* check whether ELM device is registered */
>  	if (!pdev) {
> -		pr_err("nand: error: ELM device not found\n");
> +		dev_err(&info->pdev->dev, "ELM device not found\n");
>  		return false;
>  	}
>  	/* ELM module available, now configure it */
> @@ -1734,14 +1736,14 @@ static int omap_nand_probe(struct platform_device *pdev)
>  	/* scan NAND device connected to chip controller */
>  	nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
>  	if (nand_scan_ident(mtd, 1, NULL)) {
> -		pr_err("nand device scan failed, may be bus-width mismatch\n");
> +		dev_err(&info->pdev->dev, "scan failed, may be bus-width mismatch\n");
>  		err = -ENXIO;
>  		goto return_error;
>  	}
>  
>  	/* check for small page devices */
>  	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
> -		pr_err("small page devices are not supported\n");
> +		dev_err(&info->pdev->dev, "small page devices are not supported\n");
>  		err = -EINVAL;
>  		goto return_error;
>  	}
> @@ -1959,7 +1961,6 @@ static int omap_nand_probe(struct platform_device *pdev)
>  							nand_chip->ecc.bytes,
>  							&ecclayout);
>  		if (!nand_chip->ecc.priv) {
> -			pr_err("nand: error: unable to use s/w BCH library\n");

Where would the error be printed in this case?

I also noticed a similar message in the OMAP_ECC_BCH4_CODE_HW_DETECTION_SW case.
And it seems to be missing a "goto return_error" there.

>  			err = -EINVAL;
>  			goto return_error;
>  		}
> @@ -2026,7 +2027,7 @@ static int omap_nand_probe(struct platform_device *pdev)
>  				ecclayout->eccpos[ecclayout->eccbytes - 1] + 1;
>  		break;
>  	default:
> -		pr_err("nand: error: invalid or unsupported ECC scheme\n");
> +		dev_err(&info->pdev->dev, "invalid or unsupported ECC scheme\n");
>  		err = -EINVAL;
>  		goto return_error;
>  	}
> @@ -2038,8 +2039,9 @@ static int omap_nand_probe(struct platform_device *pdev)
>  	ecclayout->oobfree->length = mtd->oobsize - ecclayout->oobfree->offset;
>  	/* check if NAND device's OOB is enough to store ECC signatures */
>  	if (mtd->oobsize < (ecclayout->eccbytes + BADBLOCK_MARKER_LENGTH)) {
> -		pr_err("not enough OOB bytes required = %d, available=%d\n",
> -					   ecclayout->eccbytes, mtd->oobsize);
> +		dev_err(&info->pdev->dev,
> +			"not enough OOB bytes required = %d, available=%d\n",
> +			ecclayout->eccbytes, mtd->oobsize);
>  		err = -EINVAL;
>  		goto return_error;
>  	}
> 

cheers,
-roger
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Ezequiel Garcia Sept. 8, 2014, 2:35 p.m. UTC | #2
On 08 Sep 02:57 PM, Roger Quadros wrote:
> Hi Ezequiel,
> 
> On 09/08/2014 02:27 PM, Ezequiel Garcia wrote:
> > Usage of pr_err is frowned upon, so replace it with dev_err.
> > Aditionally, the message on nand_bch_init() error is redundant,
> > since proper error is showed if the function fails.
> > 
> > Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
> > ---
> >  drivers/mtd/nand/omap2.c | 26 ++++++++++++++------------
> >  1 file changed, 14 insertions(+), 12 deletions(-)
> > 
> > diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
> > index f97a4ff..eb5e898 100644
> > --- a/drivers/mtd/nand/omap2.c
> > +++ b/drivers/mtd/nand/omap2.c
> > @@ -1375,7 +1375,7 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
> >  		erased_ecc_vec = bch16_vector;
> >  		break;
> >  	default:
> > -		pr_err("invalid driver configuration\n");
> > +		dev_err(&info->pdev->dev, "invalid driver configuration\n");
> >  		return -EINVAL;
> >  	}
> >  
> > @@ -1446,7 +1446,8 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
> >  	err = 0;
> >  	for (i = 0; i < eccsteps; i++) {
> >  		if (err_vec[i].error_uncorrectable) {
> > -			pr_err("nand: uncorrectable bit-flips found\n");
> > +			dev_err(&info->pdev->dev,
> > +				"uncorrectable bit-flips found\n");
> >  			err = -EBADMSG;
> >  		} else if (err_vec[i].error_reported) {
> >  			for (j = 0; j < err_vec[i].error_count; j++) {
> > @@ -1483,8 +1484,9 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
> >  							1 << bit_pos;
> >  					}
> >  				} else {
> > -					pr_err("invalid bit-flip @ %d:%d\n",
> > -							 byte_pos, bit_pos);
> > +					dev_err(&info->pdev->dev,
> > +						"invalid bit-flip @ %d:%d\n",
> > +						byte_pos, bit_pos);
> >  					err = -EBADMSG;
> >  				}
> >  			}
> > @@ -1598,13 +1600,13 @@ static bool is_elm_present(struct omap_nand_info *info,
> >  
> >  	/* check whether elm-id is passed via DT */
> >  	if (!elm_node) {
> > -		pr_err("nand: error: ELM DT node not found\n");
> > +		dev_err(&info->pdev->dev, "ELM devicetree node not found\n");
> >  		return false;
> >  	}
> >  	pdev = of_find_device_by_node(elm_node);
> >  	/* check whether ELM device is registered */
> >  	if (!pdev) {
> > -		pr_err("nand: error: ELM device not found\n");
> > +		dev_err(&info->pdev->dev, "ELM device not found\n");
> >  		return false;
> >  	}
> >  	/* ELM module available, now configure it */
> > @@ -1734,14 +1736,14 @@ static int omap_nand_probe(struct platform_device *pdev)
> >  	/* scan NAND device connected to chip controller */
> >  	nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
> >  	if (nand_scan_ident(mtd, 1, NULL)) {
> > -		pr_err("nand device scan failed, may be bus-width mismatch\n");
> > +		dev_err(&info->pdev->dev, "scan failed, may be bus-width mismatch\n");
> >  		err = -ENXIO;
> >  		goto return_error;
> >  	}
> >  
> >  	/* check for small page devices */
> >  	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
> > -		pr_err("small page devices are not supported\n");
> > +		dev_err(&info->pdev->dev, "small page devices are not supported\n");
> >  		err = -EINVAL;
> >  		goto return_error;
> >  	}
> > @@ -1959,7 +1961,6 @@ static int omap_nand_probe(struct platform_device *pdev)
> >  							nand_chip->ecc.bytes,
> >  							&ecclayout);
> >  		if (!nand_chip->ecc.priv) {
> > -			pr_err("nand: error: unable to use s/w BCH library\n");
> 
> Where would the error be printed in this case?
> 

Well, nand_bch_init() has a lot of messages for the errors, but I just noticed
some cases where there's no message printed. Would you prefer to leave these
untouched?

> I also noticed a similar message in the OMAP_ECC_BCH4_CODE_HW_DETECTION_SW case.
> And it seems to be missing a "goto return_error" there.
> 

Argh, right. I'll have to resend this one.
Roger Quadros Sept. 9, 2014, 8:33 a.m. UTC | #3
On 09/08/2014 05:35 PM, Ezequiel Garcia wrote:
> On 08 Sep 02:57 PM, Roger Quadros wrote:
>> Hi Ezequiel,
>>
>> On 09/08/2014 02:27 PM, Ezequiel Garcia wrote:
>>> Usage of pr_err is frowned upon, so replace it with dev_err.
>>> Aditionally, the message on nand_bch_init() error is redundant,
>>> since proper error is showed if the function fails.
>>>
>>> Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
>>> ---
>>>  drivers/mtd/nand/omap2.c | 26 ++++++++++++++------------
>>>  1 file changed, 14 insertions(+), 12 deletions(-)
>>>
>>> diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
>>> index f97a4ff..eb5e898 100644
>>> --- a/drivers/mtd/nand/omap2.c
>>> +++ b/drivers/mtd/nand/omap2.c
>>> @@ -1375,7 +1375,7 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>>>  		erased_ecc_vec = bch16_vector;
>>>  		break;
>>>  	default:
>>> -		pr_err("invalid driver configuration\n");
>>> +		dev_err(&info->pdev->dev, "invalid driver configuration\n");
>>>  		return -EINVAL;
>>>  	}
>>>  
>>> @@ -1446,7 +1446,8 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>>>  	err = 0;
>>>  	for (i = 0; i < eccsteps; i++) {
>>>  		if (err_vec[i].error_uncorrectable) {
>>> -			pr_err("nand: uncorrectable bit-flips found\n");
>>> +			dev_err(&info->pdev->dev,
>>> +				"uncorrectable bit-flips found\n");
>>>  			err = -EBADMSG;
>>>  		} else if (err_vec[i].error_reported) {
>>>  			for (j = 0; j < err_vec[i].error_count; j++) {
>>> @@ -1483,8 +1484,9 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
>>>  							1 << bit_pos;
>>>  					}
>>>  				} else {
>>> -					pr_err("invalid bit-flip @ %d:%d\n",
>>> -							 byte_pos, bit_pos);
>>> +					dev_err(&info->pdev->dev,
>>> +						"invalid bit-flip @ %d:%d\n",
>>> +						byte_pos, bit_pos);
>>>  					err = -EBADMSG;
>>>  				}
>>>  			}
>>> @@ -1598,13 +1600,13 @@ static bool is_elm_present(struct omap_nand_info *info,
>>>  
>>>  	/* check whether elm-id is passed via DT */
>>>  	if (!elm_node) {
>>> -		pr_err("nand: error: ELM DT node not found\n");
>>> +		dev_err(&info->pdev->dev, "ELM devicetree node not found\n");
>>>  		return false;
>>>  	}
>>>  	pdev = of_find_device_by_node(elm_node);
>>>  	/* check whether ELM device is registered */
>>>  	if (!pdev) {
>>> -		pr_err("nand: error: ELM device not found\n");
>>> +		dev_err(&info->pdev->dev, "ELM device not found\n");
>>>  		return false;
>>>  	}
>>>  	/* ELM module available, now configure it */
>>> @@ -1734,14 +1736,14 @@ static int omap_nand_probe(struct platform_device *pdev)
>>>  	/* scan NAND device connected to chip controller */
>>>  	nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
>>>  	if (nand_scan_ident(mtd, 1, NULL)) {
>>> -		pr_err("nand device scan failed, may be bus-width mismatch\n");
>>> +		dev_err(&info->pdev->dev, "scan failed, may be bus-width mismatch\n");
>>>  		err = -ENXIO;
>>>  		goto return_error;
>>>  	}
>>>  
>>>  	/* check for small page devices */
>>>  	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
>>> -		pr_err("small page devices are not supported\n");
>>> +		dev_err(&info->pdev->dev, "small page devices are not supported\n");
>>>  		err = -EINVAL;
>>>  		goto return_error;
>>>  	}
>>> @@ -1959,7 +1961,6 @@ static int omap_nand_probe(struct platform_device *pdev)
>>>  							nand_chip->ecc.bytes,
>>>  							&ecclayout);
>>>  		if (!nand_chip->ecc.priv) {
>>> -			pr_err("nand: error: unable to use s/w BCH library\n");
>>
>> Where would the error be printed in this case?
>>
> 
> Well, nand_bch_init() has a lot of messages for the errors, but I just noticed
> some cases where there's no message printed. Would you prefer to leave these
> untouched?

Yes, let's leave these messages here to tackle the cases where error messages aren't printed
in nand_bch_init().

> 
>> I also noticed a similar message in the OMAP_ECC_BCH4_CODE_HW_DETECTION_SW case.
>> And it seems to be missing a "goto return_error" there.
>>
> 
> Argh, right. I'll have to resend this one.
> 

cheers,
-roger
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diff mbox

Patch

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f97a4ff..eb5e898 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1375,7 +1375,7 @@  static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 		erased_ecc_vec = bch16_vector;
 		break;
 	default:
-		pr_err("invalid driver configuration\n");
+		dev_err(&info->pdev->dev, "invalid driver configuration\n");
 		return -EINVAL;
 	}
 
@@ -1446,7 +1446,8 @@  static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 	err = 0;
 	for (i = 0; i < eccsteps; i++) {
 		if (err_vec[i].error_uncorrectable) {
-			pr_err("nand: uncorrectable bit-flips found\n");
+			dev_err(&info->pdev->dev,
+				"uncorrectable bit-flips found\n");
 			err = -EBADMSG;
 		} else if (err_vec[i].error_reported) {
 			for (j = 0; j < err_vec[i].error_count; j++) {
@@ -1483,8 +1484,9 @@  static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 							1 << bit_pos;
 					}
 				} else {
-					pr_err("invalid bit-flip @ %d:%d\n",
-							 byte_pos, bit_pos);
+					dev_err(&info->pdev->dev,
+						"invalid bit-flip @ %d:%d\n",
+						byte_pos, bit_pos);
 					err = -EBADMSG;
 				}
 			}
@@ -1598,13 +1600,13 @@  static bool is_elm_present(struct omap_nand_info *info,
 
 	/* check whether elm-id is passed via DT */
 	if (!elm_node) {
-		pr_err("nand: error: ELM DT node not found\n");
+		dev_err(&info->pdev->dev, "ELM devicetree node not found\n");
 		return false;
 	}
 	pdev = of_find_device_by_node(elm_node);
 	/* check whether ELM device is registered */
 	if (!pdev) {
-		pr_err("nand: error: ELM device not found\n");
+		dev_err(&info->pdev->dev, "ELM device not found\n");
 		return false;
 	}
 	/* ELM module available, now configure it */
@@ -1734,14 +1736,14 @@  static int omap_nand_probe(struct platform_device *pdev)
 	/* scan NAND device connected to chip controller */
 	nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
 	if (nand_scan_ident(mtd, 1, NULL)) {
-		pr_err("nand device scan failed, may be bus-width mismatch\n");
+		dev_err(&info->pdev->dev, "scan failed, may be bus-width mismatch\n");
 		err = -ENXIO;
 		goto return_error;
 	}
 
 	/* check for small page devices */
 	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
-		pr_err("small page devices are not supported\n");
+		dev_err(&info->pdev->dev, "small page devices are not supported\n");
 		err = -EINVAL;
 		goto return_error;
 	}
@@ -1959,7 +1961,6 @@  static int omap_nand_probe(struct platform_device *pdev)
 							nand_chip->ecc.bytes,
 							&ecclayout);
 		if (!nand_chip->ecc.priv) {
-			pr_err("nand: error: unable to use s/w BCH library\n");
 			err = -EINVAL;
 			goto return_error;
 		}
@@ -2026,7 +2027,7 @@  static int omap_nand_probe(struct platform_device *pdev)
 				ecclayout->eccpos[ecclayout->eccbytes - 1] + 1;
 		break;
 	default:
-		pr_err("nand: error: invalid or unsupported ECC scheme\n");
+		dev_err(&info->pdev->dev, "invalid or unsupported ECC scheme\n");
 		err = -EINVAL;
 		goto return_error;
 	}
@@ -2038,8 +2039,9 @@  static int omap_nand_probe(struct platform_device *pdev)
 	ecclayout->oobfree->length = mtd->oobsize - ecclayout->oobfree->offset;
 	/* check if NAND device's OOB is enough to store ECC signatures */
 	if (mtd->oobsize < (ecclayout->eccbytes + BADBLOCK_MARKER_LENGTH)) {
-		pr_err("not enough OOB bytes required = %d, available=%d\n",
-					   ecclayout->eccbytes, mtd->oobsize);
+		dev_err(&info->pdev->dev,
+			"not enough OOB bytes required = %d, available=%d\n",
+			ecclayout->eccbytes, mtd->oobsize);
 		err = -EINVAL;
 		goto return_error;
 	}