diff options
| author |   Pavel Shved <shved@ispras.ru> | 2011-06-17 06:25:11 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@conan.davemloft.net> | 2011-06-17 15:27:32 -0400 |
| commit | 2f9381e98471837b631743270de988e78aad1f96 (patch) | |
| tree | 8d87fe2573694a91f8ae46e5bb90d2096c1a45a4 /net | |
| parent | farsync: add module_put to error path in fst_open() (diff) | |
| download | linux-dev-2f9381e98471837b631743270de988e78aad1f96.tar.xz linux-dev-2f9381e98471837b631743270de988e78aad1f96.zip | |
gigaset: call module_put before restart of if_open()
if_open() calls try_module_get(), and after an attempt to lock a mutex
the if_open() function may return -ERESTARTSYS without
putting the module. Then, when if_open() is executed again,
try_module_get() is called making the reference counter of THIS_MODULE
greater than one at successful exit from if_open(). The if_close()
function puts the module only once, and as a result it can't be
unloaded.
This patch adds module_put call before the return from if_open().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Pavel Shved <shved@ispras.ru>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions