Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1523508d6321436b6edfcd99aab04a344f9aed3f
Commit: 1523508d6321436b6edfcd99aab04a344f9aed3f
Parent: 5a1c3e1aa977457ded6fd0739e032c9684bf23bd
Author: Julia Lawall <[EMAIL PROTECTED]>
AuthorDate: Mon Feb 4 22:27:46 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Feb 5 09:44:09 2008 -0800
drivers/pcmcia: add missing pci_dev_get
pci_get_slot does a pci_dev_get, so pci_dev_put needs to be called in an
error case.
An extract of the semantic match used to find the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type find1.T,T1,T2;
identifier find1.E;
statement find1.S;
expression x1,x2,x3;
expression find1.test;
int ret != 0;
@@
T E;
...
(
* E = pci_get_slot(...);
if (E == NULL) S
|
* if ((E = pci_get_slot(...)) == NULL)
S
)
... when != pci_dev_put(...,(T1)E,...)
when != if (E != NULL) { ... pci_dev_put(...,(T1)E,...); ...}
when != x1 = (T1)E
when != E = x3;
when any
if (test) {
... when != pci_dev_put(...,(T2)E,...)
when != if (E != NULL) { ... pci_dev_put(...,(T2)E,...); ...}
when != x2 = (T2)E
(
* return;
|
* return ret;
)
}
// </smpl>
Signed-off-by: Julia Lawall <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/pcmcia/cardbus.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index a1bd763..714baae 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -143,7 +143,7 @@ int read_cb_mem(struct pcmcia_socket * s, int space, u_int
addr, u_int len, void
/* Config space? */
if (space == 0) {
if (addr + len > 0x100)
- goto fail;
+ goto failput;
for (; len; addr++, ptr++, len--)
pci_read_config_byte(dev, addr, ptr);
return 0;
@@ -171,6 +171,8 @@ int read_cb_mem(struct pcmcia_socket * s, int space, u_int
addr, u_int len, void
memcpy_fromio(ptr, s->cb_cis_virt + addr, len);
return 0;
+failput:
+ pci_dev_put(dev);
fail:
memset(ptr, 0xff, len);
return -1;
-
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