From: Julia Lawall <julia@xxxxxxx> Apparently, the NULL test is not necessary at this point. The semantic patch that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> Acked-by: Jiri Slaby <jirislaby@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/staging/otus/wwrap.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/drivers/staging/otus/wwrap.c b/drivers/staging/otus/wwrap.c index 4084ad0..53d2a45 100644 --- a/drivers/staging/otus/wwrap.c +++ b/drivers/staging/otus/wwrap.c @@ -1015,11 +1015,6 @@ void kevent(struct work_struct *work) container_of(work, struct usbdrv_private, kevent); zdev_t *dev = macp->device; - if (macp == NULL) - { - return; - } - if (test_and_set_bit(0, (void *)&smp_kevent_Lock)) { //schedule_work(&macp->kevent); -- 1.6.4.2 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel