[PATCH 1/2] drivers/misc/cb710/core.c: Add missing pci_dev_put

From: Julia Lawall
Date: Thu Jul 28 2011 - 12:30:26 EST


From: Julia Lawall <julia@xxxxxxx>

Pci_get_slot calls pci_dev_get, so pci_dev_put is needed before leaving the
function.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
local idexpression x;
expression e;
@@

*x = pci_get_slot(...)
... when != true x == NULL
when != pci_dev_put(x)
when != e = x
when != if (x != NULL) {<+... pci_dev_put(x); ...+>}
*return ...;
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
Not tested.

drivers/misc/cb710/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index efec413..84983c7 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -41,7 +41,7 @@ static int __devinit cb710_pci_configure(struct pci_dev *pdev)

pci_read_config_dword(pdev, 0x48, &val);
if (val & 0x80000000)
- return 0;
+ goto out;

if (!pdev0)
return -ENODEV;
@@ -59,6 +59,7 @@ static int __devinit cb710_pci_configure(struct pci_dev *pdev)
cb710_pci_update_config_reg(pdev0, 0x90,
~0x00060000, 0x00040000);

+out:
pci_dev_put(pdev0);

return 0;

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