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| author | Ian Abbott <abbotti@mev.co.uk> | 2013-08-20 11:50:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:34:21 -0800 |
| commit | 70a9deaa57ee1572c95dce7ec1991bf018728f3a (patch) | |
| tree | 5669b2acfc49a092d39eb154fb7e2ac53ed43911 /lib/mpi/mpi-div.c | |
| parent | e71859894bfd0ceaf65e98bf287478242d17a9ec (diff) | |
staging: comedi: pcmuio: fix possible NULL deref on detach
commit 2fd2bdfccae61efe18f6b92b6a45fbf936d75b48 upstream.
pcmuio_detach() is called by the comedi core even if pcmuio_attach()
returned an error, so `dev->private` might be `NULL`. Check for that
before dereferencing it.
Also, as pointed out by Dan Carpenter, there is no need to check the
pointer passed to `kfree()` is non-NULL, so remove that check.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/mpi/mpi-div.c')
0 files changed, 0 insertions, 0 deletions