drivers/usb/host/ohci-pxa27x.c: add missing clk_put

Add a label before the call to clk_put and jump to that in the error
handling code that occurs after the call to clk_get has succeeded.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index afef7b0..80be547 100644 (file)
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -312,8 +312,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
                return PTR_ERR(usb_clk);
 
        hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
-       if (!hcd)
-               return -ENOMEM;
+       if (!hcd) {
+               retval = -ENOMEM;
+               goto err0;
+       }
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!r) {
@@ -368,6 +370,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
        release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
  err1:
        usb_put_hcd(hcd);
+ err0:
        clk_put(usb_clk);
        return retval;
 }