staging: vme_user: fix NULL comparison style
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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				| @ -527,7 +527,7 @@ static int vme_user_master_mmap(unsigned int minor, struct vm_area_struct *vma) | ||||
| 	} | ||||
| 
 | ||||
| 	vma_priv = kmalloc(sizeof(struct vme_user_vma_priv), GFP_KERNEL); | ||||
| 	if (vma_priv == NULL) { | ||||
| 	if (!vma_priv) { | ||||
| 		mutex_unlock(&image[minor].mutex); | ||||
| 		return -ENOMEM; | ||||
| 	} | ||||
| @ -588,7 +588,7 @@ static int vme_user_probe(struct vme_dev *vdev) | ||||
| 	char *name; | ||||
| 
 | ||||
| 	/* Save pointer to the bridge device */ | ||||
| 	if (vme_user_bridge != NULL) { | ||||
| 	if (vme_user_bridge) { | ||||
| 		dev_err(&vdev->dev, "Driver can only be loaded for 1 device\n"); | ||||
| 		err = -EINVAL; | ||||
| 		goto err_dev; | ||||
| @ -636,7 +636,7 @@ static int vme_user_probe(struct vme_dev *vdev) | ||||
| 		 */ | ||||
| 		image[i].resource = vme_slave_request(vme_user_bridge, | ||||
| 			VME_A24, VME_SCT); | ||||
| 		if (image[i].resource == NULL) { | ||||
| 		if (!image[i].resource) { | ||||
| 			dev_warn(&vdev->dev, | ||||
| 				 "Unable to allocate slave resource\n"); | ||||
| 			err = -ENOMEM; | ||||
| @ -645,7 +645,7 @@ static int vme_user_probe(struct vme_dev *vdev) | ||||
| 		image[i].size_buf = PCI_BUF_SIZE; | ||||
| 		image[i].kern_buf = vme_alloc_consistent(image[i].resource, | ||||
| 			image[i].size_buf, &image[i].pci_buf); | ||||
| 		if (image[i].kern_buf == NULL) { | ||||
| 		if (!image[i].kern_buf) { | ||||
| 			dev_warn(&vdev->dev, | ||||
| 				 "Unable to allocate memory for buffer\n"); | ||||
| 			image[i].pci_buf = 0; | ||||
| @ -663,7 +663,7 @@ static int vme_user_probe(struct vme_dev *vdev) | ||||
| 		/* XXX Need to properly request attributes */ | ||||
| 		image[i].resource = vme_master_request(vme_user_bridge, | ||||
| 			VME_A32, VME_SCT, VME_D32); | ||||
| 		if (image[i].resource == NULL) { | ||||
| 		if (!image[i].resource) { | ||||
| 			dev_warn(&vdev->dev, | ||||
| 				 "Unable to allocate master resource\n"); | ||||
| 			err = -ENOMEM; | ||||
| @ -671,7 +671,7 @@ static int vme_user_probe(struct vme_dev *vdev) | ||||
| 		} | ||||
| 		image[i].size_buf = PCI_BUF_SIZE; | ||||
| 		image[i].kern_buf = kmalloc(image[i].size_buf, GFP_KERNEL); | ||||
| 		if (image[i].kern_buf == NULL) { | ||||
| 		if (!image[i].kern_buf) { | ||||
| 			err = -ENOMEM; | ||||
| 			vme_master_free(image[i].resource); | ||||
| 			goto err_master; | ||||
|  | ||||
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