From julia@diku.dk  Mon Nov 26 21:52:39 2007
From: Julia Lawall <julia@diku.dk>
Date: Tue, 20 Nov 2007 08:41:16 +0100 (CET)
Subject: PCI: drivers/pci/pci-sysfs.c: Add missing pci_dev_put
To: gregkh@suse.de
Message-ID: <Pine.LNX.4.64.0711200840180.8156@ask.diku.dk>

From: Julia Lawall <julia@diku.dk>

There should be a pci_dev_put when breaking out of a loop that iterates
over calls to pci_get_device and similar functions.

This was fixed using the following semantic patch.

// <smpl>
@@
identifier d;
type T;
expression e;
iterator for_each_pci_dev;
@@

T *d;
...
for_each_pci_dev(d)
  {... when != pci_dev_put(d)
       when != e = d
(
   return d;
|
+  pci_dev_put(d);
?  return ...;
)
...}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/pci/pci-sysfs.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -702,8 +702,10 @@ static int __init pci_sysfs_init(void)
 	sysfs_initialized = 1;
 	for_each_pci_dev(pdev) {
 		retval = pci_create_sysfs_dev_files(pdev);
-		if (retval)
+		if (retval) {
+			pci_dev_put(pdev);
 			return retval;
+		}
 	}
 
 	return 0;