mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 03:10:12 +00:00
Code Issues Releases Wiki Activity

spi/spi-{bcm63xx.c,bfin-v3.c}: simplify use of devm_ioremap_resource

Browse source 
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.

Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Julia Lawall 2013-08-14 11:11:09 +02:00 committed by Mark Brown
parent fa4bd4f1ad
commit de0fa83c41
2 changed files with 2 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/spi/spi-bcm63xx.c
View file

@ -360,13 +360,6 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
struct bcm63xx_spi *bs;
int ret;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
dev_err(dev, "no iomem\n");
ret = -ENXIO;
goto out;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(dev, "no irq\n");
@ -393,6 +386,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, master);
bs->pdev = pdev;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
bs->regs = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(bs->regs)) {
ret = PTR_ERR(bs->regs);

8
drivers/spi/spi-bfin-v3.c
View file

@ -792,13 +792,6 @@ static int bfin_spi_probe(struct platform_device *pdev)
return -ENXIO;
}
/* get register base and tx/rx dma */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
dev_err(dev, "can not get register base\n");
return -ENXIO;
}
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!res) {
dev_err(dev, "can not get tx dma resource\n");
@ -838,6 +831,7 @@ static int bfin_spi_probe(struct platform_device *pdev)
drv_data->pin_req = info->pin_req;
drv_data->sclk = sclk;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
drv_data->regs = devm_ioremap_resource(dev, mem);
if (IS_ERR(drv_data->regs)) {
ret = PTR_ERR(drv_data->regs);