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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>
This commit is contained in:
Julia Lawall 2011-06-01 19:10:06 +02:00 committed by Greg Kroah-Hartman
parent 97b2f90033
commit 7febe2be36
1 changed files with 5 additions and 2 deletions
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7
drivers/usb/host/ohci-pxa27x.c
View File

@ -312,8 +312,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
return PTR_ERR(usb_clk); return PTR_ERR(usb_clk);
hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x"); hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
if (!hcd) if (!hcd) {
return -ENOMEM; retval = -ENOMEM;
goto err0;
}
r = platform_get_resource(pdev, IORESOURCE_MEM, 0); r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) { 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); release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1: err1:
usb_put_hcd(hcd); usb_put_hcd(hcd);
err0:
clk_put(usb_clk); clk_put(usb_clk);
return retval; return retval;
} }