diff options
| author | Thierry Reding <thierry.reding@avionic-design.de> | 2013-01-21 11:09:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 12:21:46 -0800 |
| commit | 7331205a9662a730799470fdd9ecbff0ea073606 (patch) | |
| tree | b314ae443a4b788456a44237a4fdadf3dd27c25f /drivers/dma/dw_dmac.c | |
| parent | 93316e263a321de6ef268a2a66c322626bd65cf1 (diff) | |
dma: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma/dw_dmac.c')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 3e8ba02ba292..b33d1f6e1333 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -14,6 +14,7 @@ #include <linux/delay.h> #include <linux/dmaengine.h> #include <linux/dma-mapping.h> +#include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -1489,9 +1490,9 @@ static int dw_probe(struct platform_device *pdev) if (irq < 0) return irq; - regs = devm_request_and_ioremap(&pdev->dev, io); - if (!regs) - return -EBUSY; + regs = devm_ioremap_resource(&pdev->dev, io); + if (IS_ERR(regs)) + return PTR_ERR(regs); dw_params = dma_read_byaddr(regs, DW_PARAMS); autocfg = dw_params >> DW_PARAMS_EN & 0x1; |