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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2014-09-23 15:14:09 +0400
committerNicolas Ferre <nicolas.ferre@atmel.com>2014-11-13 18:07:59 +0300
commitd41da3ee1a9c46d175ca4cdca369f35c35f89cdc (patch)
tree504dccf40eb42aa114bdec932f93df90360a61eb /drivers/rtc/rtc-at91sam9.c
parent272f1dfa617ac2eb02a34f534d8d24a6b97eeb08 (diff)
downloadlinux-d41da3ee1a9c46d175ca4cdca369f35c35f89cdc.tar.xz
rtc: at91sam9: replace devm_ioremap by devm_ioremap_resource
Replace devm_ioremap calls by devm_ioremap_resource which already check resource consistency (resource != NULL) and print an error in case of failure. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'drivers/rtc/rtc-at91sam9.c')
-rw-r--r--drivers/rtc/rtc-at91sam9.c29
1 files changed, 10 insertions, 19 deletions
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 74a9ca0bbeb4..38a26931b659 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -306,18 +306,11 @@ static const struct rtc_class_ops at91_rtc_ops = {
*/
static int at91_rtc_probe(struct platform_device *pdev)
{
- struct resource *r, *r_gpbr;
+ struct resource *r;
struct sam9_rtc *rtc;
int ret, irq;
u32 mr;
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- r_gpbr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!r || !r_gpbr) {
- dev_err(&pdev->dev, "need 2 ressources\n");
- return -ENODEV;
- }
-
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get interrupt resource\n");
@@ -335,18 +328,16 @@ static int at91_rtc_probe(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 1);
platform_set_drvdata(pdev, rtc);
- rtc->rtt = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (!rtc->rtt) {
- dev_err(&pdev->dev, "failed to map registers, aborting.\n");
- return -ENOMEM;
- }
- rtc->gpbr = devm_ioremap(&pdev->dev, r_gpbr->start,
- resource_size(r_gpbr));
- if (!rtc->gpbr) {
- dev_err(&pdev->dev, "failed to map gpbr registers, aborting.\n");
- return -ENOMEM;
- }
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ rtc->rtt = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(rtc->rtt))
+ return PTR_ERR(rtc->rtt);
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ rtc->gpbr = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(rtc->gpbr))
+ return PTR_ERR(rtc->rtt);
mr = rtt_readl(rtc, MR);