From ea237a6ae953b19d03f29236f095389d7906a0b4 Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Wed, 6 Feb 2008 01:39:07 -0800
Subject: [PATCH] drivers/video: remove unnecessary pci_dev_put
pci_get_class implicitly does a pci_dev_put on its second argument, so
pci_dev_put is only needed if there is a break out of the loop.
The semantic match detecting this problem is as follows:
// <smpl>
@@
expression dev;
expression E;
@@
* pci_dev_put(dev)
... when != dev = E
(
* pci_get_device(...,dev)
|
* pci_get_device_reverse(...,dev)
|
* pci_get_subsys(...,dev)
|
* pci_get_class(...,dev)
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/video/sis/sis_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 5b28fa2038ff..73803624c131 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -4621,9 +4621,9 @@ sisfb_find_host_bridge(struct sis_video_info *ivideo, struct pci_dev *mypdev,
while((pdev = pci_get_class(PCI_CLASS_BRIDGE_HOST, pdev))) {
temp = pdev->vendor;
- pci_dev_put(pdev);
if(temp == pcivendor) {
ret = 1;
+ pci_dev_put(pdev);
break;
}
}
--
2.34.1