From 98ccdc56a067b267fc87f68c1d1ad1f2f237e217 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 26 Dec 2008 08:28:58 +0100 Subject: [PATCH] Staging: comedi: Move a dereference below a NULL test If the NULL test is necessary, then the dereference should be moved below the NULL test. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/). // @disable is_null@ identifier f; expression E; identifier fld; statement S; @@ + if (E == NULL) S f(...,E->fld,...); - if (E == NULL) S @@ identifier f; expression E; identifier fld; statement S; @@ + if (!E) S f(...,E->fld,...); - if (!E) S // Signed-off-by: Julia Lawall Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/usbduxfast.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 3ad3a08c3c20..cc42d7a32c44 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -1675,15 +1675,15 @@ static int usbduxfast_detach(comedi_device * dev) { usbduxfastsub_t *usbduxfastsub_tmp; -#ifdef CONFIG_COMEDI_DEBUG - printk("comedi%d: usbduxfast: detach usb device\n", dev->minor); -#endif - if (!dev) { printk("comedi?: usbduxfast: detach without dev variable...\n"); return -EFAULT; } +#ifdef CONFIG_COMEDI_DEBUG + printk("comedi%d: usbduxfast: detach usb device\n", dev->minor); +#endif + usbduxfastsub_tmp = dev->private; if (!usbduxfastsub_tmp) { printk("comedi?: usbduxfast: detach without ptr to usbduxfastsub[]\n"); -- 2.20.1