Hello.
On 12/08/2013 06:02 PM, Boris BREZILLON wrote:
Replace the request_mem_region + ioremap calls by the
devm_ioremap_resource call which does the same things but with device
managed resources.
Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ohci-at91.c | 28 +++++++---------------------
1 file changed, 7 insertions(+), 21 deletions(-)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 8c356af..fe2ecc5 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -158,24 +158,18 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- pr_debug("request_mem_region failed\n");
- retval = -EBUSY;
- goto err1;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- pr_debug("ioremap failed\n");
- retval = -EIO;
- goto err2;
+ hcd->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(hcd->regs)) {
+ dev_dbg(dev, "devm_ioremap_resource failed\n");
I've already told you devm_ioremap_resource() prints the detailed error
message. No need to duplicate it.
+ retval = PTR_ERR(hcd->regs);
+ goto err;
}
WBR, Sergei
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