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author | Julia Lawall <julia@diku.dk> | 2008-12-01 23:00:55 +0100 |
---|---|---|
committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-12-02 10:45:19 +0000 |
commit | d94762989103b5e29938d8a7b0112e72c4633265 (patch) | |
tree | e9924de6103c2dd6ca57306a6a09cc50e2901c9f | |
parent | 29b65861fbece04cfdf3fee352d5247369131850 (diff) | |
download | linux-stable-d94762989103b5e29938d8a7b0112e72c4633265.tar.gz linux-stable-d94762989103b5e29938d8a7b0112e72c4633265.tar.bz2 linux-stable-d94762989103b5e29938d8a7b0112e72c4633265.zip |
[MTD] [NAND] drivers/mtd/nand/pasemi_nand.c: Add missing pci_dev_put
pci_get_device increments a reference count that should be decremented
using pci_dev_put.
The semantic patch that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S,S1;
position p1,p2,p3;
expression E,E1;
type T,T1;
expression *ptr != NULL;
@@
(
if ((x@p1 = pci_get_device(...)) == NULL) S
|
x@p1 = pci_get_device(...);
)
... when != pci_dev_put(...,(T)x,...)
when != if (...) { <+... pci_dev_put(...,(T)x,...) ...+> }
when != true x == NULL || ...
when != x = E
when != E = (T)x
when any
(
if (x == NULL || ...) S1
|
if@p2 (...) {
... when != pci_dev_put(...,(T1)x,...)
when != if (...) { <+... pci_dev_put(...,(T1)x,...) ...+> }
when != x = E1
when != E1 = (T1)x
(
return \(0\|<+...x...+>\|ptr\);
|
return@p3 ...;
)
}
)
@ script:python @
p1 << r.p1;
p3 << r.p3;
@@
print "* file: %s pci_get_device: %s return: %s" % (p1[0].file,p1[0].line,p3[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r-- | drivers/mtd/nand/pasemi_nand.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 75c899039023..9bd6c9ac8443 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -141,6 +141,7 @@ static int __devinit pasemi_nand_probe(struct of_device *ofdev, } lpcctl = pci_resource_start(pdev, 0); + pci_dev_put(pdev); if (!request_region(lpcctl, 4, driver_name)) { err = -EBUSY; |