The patch titled
drivers/isdn/capi/kcapi.c: Adjust error handling code involving capi_ctr_put
has been added to the -mm tree. Its filename is
drivers-isdn-capi-kcapic-adjust-error-handling-code-involving-capi_ctr_put.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/isdn/capi/kcapi.c: Adjust error handling code involving capi_ctr_put
From: Julia Lawall <julia@xxxxxxx>
After calling capi_ctr_get, error handling code should call capi_ctr_put.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r@
expression x,E;
statement S;
position p1,p2,p3;
@@
(
if ((x = capi_ctr_get@p1(...)) == NULL || ...) S
|
x = capi_ctr_get@p1(...)
... when != x
if (x == NULL || ...) S
)
<...
if@p3 (...) { ... when != capi_ctr_put(x)
when != if (x) { ... capi_ctr_put(x); ...}
return@p2 ...;
}
...>
(
return x;
|
return 0;
|
x = E
|
E = x
|
capi_ctr_put(x)
)
@exists@
position r.p1,r.p2,r.p3;
expression x;
int ret != 0;
statement S;
@@
* x = capi_ctr_get@p1(...)
<...
* if@p3 (...)
S
...>
* return@p2 \(NULL\|ret\);
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
Cc: Karsten Keil <kkeil@xxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/isdn/capi/kcapi.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN drivers/isdn/capi/kcapi.c~drivers-isdn-capi-kcapic-adjust-error-handling-code-involving-capi_ctr_put drivers/isdn/capi/kcapi.c
--- a/drivers/isdn/capi/kcapi.c~drivers-isdn-capi-kcapic-adjust-error-handling-code-involving-capi_ctr_put
+++ a/drivers/isdn/capi/kcapi.c
@@ -828,15 +828,18 @@ static int old_capi_manufacturer(unsigne
return -ESRCH;
if (card->load_firmware == NULL) {
printk(KERN_DEBUG "kcapi: load: no load function\n");
+ capi_ctr_put(card);
return -ESRCH;
}
if (ldef.t4file.len <= 0) {
printk(KERN_DEBUG "kcapi: load: invalid parameter: length of t4file is %d ?\n", ldef.t4file.len);
+ capi_ctr_put(card);
return -EINVAL;
}
if (ldef.t4file.data == NULL) {
printk(KERN_DEBUG "kcapi: load: invalid parameter: dataptr is 0\n");
+ capi_ctr_put(card);
return -EINVAL;
}
@@ -849,6 +852,7 @@ static int old_capi_manufacturer(unsigne
if (card->cardstate != CARD_DETECTED) {
printk(KERN_INFO "kcapi: load: contr=%d not in detect state\n", ldef.contr);
+ capi_ctr_put(card);
return -EBUSY;
}
card->cardstate = CARD_LOADING;
_
Patches currently in -mm which might be from julia@xxxxxxx are
origin.patch
linux-next.patch
drivers-isdn-capi-kcapic-adjust-error-handling-code-involving-capi_ctr_put.patch
net-ieee80211-adjust-error-handling.patch
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