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authorRoger Quadros <rogerq@ti.com>2012-11-26 12:56:37 +0200
committerRoger Quadros <rogerq@ti.com>2013-02-13 13:22:38 +0200
commit1a7a8d70cddcf4f6847e42b414da1c3113675873 (patch)
tree86777253f455f45b04c9271bb54e7ee84afa8f2e /drivers/mfd/omap-usb-tll.c
parent7e0ff1035cb7efe9c3621c6173a123603ca33857 (diff)
downloadlinux-1a7a8d70cddcf4f6847e42b414da1c3113675873.tar.bz2
mfd: omap-usb-tll: Use devm_kzalloc/ioremap and clean up error path
Use devm_ variants of kzalloc() and ioremap(). Simplify the error path. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/mfd/omap-usb-tll.c')
-rw-r--r--drivers/mfd/omap-usb-tll.c38
1 files changed, 12 insertions, 26 deletions
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 9658e1843334..9a19cc722c76 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -215,11 +215,10 @@ static int usbtll_omap_probe(struct platform_device *pdev)
dev_dbg(dev, "starting TI HSUSB TLL Controller\n");
- tll = kzalloc(sizeof(struct usbtll_omap), GFP_KERNEL);
+ tll = devm_kzalloc(dev, sizeof(struct usbtll_omap), GFP_KERNEL);
if (!tll) {
dev_err(dev, "Memory allocation failed\n");
- ret = -ENOMEM;
- goto end;
+ return -ENOMEM;
}
spin_lock_init(&tll->lock);
@@ -230,28 +229,22 @@ static int usbtll_omap_probe(struct platform_device *pdev)
if (IS_ERR(tll->usbtll_p1_fck)) {
ret = PTR_ERR(tll->usbtll_p1_fck);
dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret);
- goto err_tll;
+ return ret;
}
tll->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk");
if (IS_ERR(tll->usbtll_p2_fck)) {
ret = PTR_ERR(tll->usbtll_p2_fck);
dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret);
- goto err_usbtll_p1_fck;
+ goto err_p2_fck;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "usb tll get resource failed\n");
- ret = -ENODEV;
- goto err_usbtll_p2_fck;
- }
-
- base = ioremap(res->start, resource_size(res));
+ base = devm_request_and_ioremap(dev, res);
if (!base) {
- dev_err(dev, "TLL ioremap failed\n");
- ret = -ENOMEM;
- goto err_usbtll_p2_fck;
+ ret = -EADDRNOTAVAIL;
+ dev_err(dev, "Resource request/ioremap failed:%d\n", ret);
+ goto err_res;
}
platform_set_drvdata(pdev, tll);
@@ -323,23 +316,17 @@ static int usbtll_omap_probe(struct platform_device *pdev)
}
spin_unlock_irqrestore(&tll->lock, flags);
- iounmap(base);
pm_runtime_put_sync(dev);
tll_pdev = pdev;
- if (!ret)
- goto end;
- pm_runtime_disable(dev);
-err_usbtll_p2_fck:
+ return 0;
+
+err_res:
clk_put(tll->usbtll_p2_fck);
-err_usbtll_p1_fck:
+err_p2_fck:
clk_put(tll->usbtll_p1_fck);
-err_tll:
- kfree(tll);
-
-end:
return ret;
}
@@ -356,7 +343,6 @@ static int usbtll_omap_remove(struct platform_device *pdev)
clk_put(tll->usbtll_p2_fck);
clk_put(tll->usbtll_p1_fck);
pm_runtime_disable(&pdev->dev);
- kfree(tll);
return 0;
}