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| author | Markus Elfring <elfring@users.sourceforge.net> | 2017-08-26 22:16:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-27 14:48:16 +0200 |
| commit | c4cdcf9f1ef06033050bce86f4bdebddf1a05461 (patch) | |
| tree | b3c32abb5b24cf1837b8ada7905e9d34a89693d0 /drivers/media | |
| parent | media: usbvision: Delete an error message for a failed memory allocation in u... (diff) | |
| download | linux-c4cdcf9f1ef06033050bce86f4bdebddf1a05461.tar.xz linux-c4cdcf9f1ef06033050bce86f4bdebddf1a05461.zip | |
media: usbvision: Adjust eight checks for null pointers
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/usb/usbvision/usbvision-video.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c index b74fb2dcb6f5..e6807bad9792 100644 --- a/drivers/media/usb/usbvision/usbvision-video.c +++ b/drivers/media/usb/usbvision/usbvision-video.c @@ -904,7 +904,7 @@ static ssize_t usbvision_read(struct file *file, char __user *buf, PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, (unsigned long)count, noblock); - if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) + if (!USBVISION_IS_OPERATIONAL(usbvision) || !buf) return -EFAULT; /* This entry point is compatible with the mmap routines @@ -1234,7 +1234,7 @@ static void usbvision_vdev_init(struct usb_usbvision *usbvision, { struct usb_device *usb_dev = usbvision->dev; - if (usb_dev == NULL) { + if (!usb_dev) { dev_err(&usbvision->dev->dev, "%s: usbvision->dev is not set\n", __func__); return; @@ -1320,7 +1320,7 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, struct usb_usbvision *usbvision; usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); - if (usbvision == NULL) + if (!usbvision) return NULL; usbvision->dev = dev; @@ -1334,7 +1334,7 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, /* prepare control urb for control messages during interrupts */ usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); - if (usbvision->ctrl_urb == NULL) + if (!usbvision->ctrl_urb) goto err_unreg; return usbvision; @@ -1380,7 +1380,7 @@ static void usbvision_configure_video(struct usb_usbvision *usbvision) { int model; - if (usbvision == NULL) + if (!usbvision) return; model = usbvision->dev_model; @@ -1474,7 +1474,7 @@ static int usbvision_probe(struct usb_interface *intf, } usbvision = usbvision_alloc(dev, intf); - if (usbvision == NULL) { + if (!usbvision) { dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); ret = -ENOMEM; goto err_usb; @@ -1494,7 +1494,7 @@ static int usbvision_probe(struct usb_interface *intf, usbvision->num_alt = uif->num_altsetting; PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); - if (usbvision->alt_max_pkt_size == NULL) { + if (!usbvision->alt_max_pkt_size) { ret = -ENOMEM; goto err_pkt; } @@ -1565,7 +1565,7 @@ static void usbvision_disconnect(struct usb_interface *intf) PDEBUG(DBG_PROBE, ""); - if (usbvision == NULL) { + if (!usbvision) { pr_err("%s: usb_get_intfdata() failed\n", __func__); return; } |