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staging: vme_user: fix NULL comparison style

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Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Kalinkin 2015-06-26 23:39:38 +03:00 committed by Greg Kroah-Hartman
parent cd974d35ab
commit f99b71be37
1 changed files with 6 additions and 6 deletions
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12
drivers/staging/vme/devices/vme_user.c
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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); vma_priv = kmalloc(sizeof(struct vme_user_vma_priv), GFP_KERNEL);
if (vma_priv == NULL) { if (!vma_priv) {
mutex_unlock(&image[minor].mutex); mutex_unlock(&image[minor].mutex);
return -ENOMEM; return -ENOMEM;
} }
@ -588,7 +588,7 @@ static int vme_user_probe(struct vme_dev *vdev)
char *name; char *name;
/* Save pointer to the bridge device */ /* 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"); dev_err(&vdev->dev, "Driver can only be loaded for 1 device\n");
err = -EINVAL; err = -EINVAL;
goto err_dev; 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, image[i].resource = vme_slave_request(vme_user_bridge,
VME_A24, VME_SCT); VME_A24, VME_SCT);
if (image[i].resource == NULL) { if (!image[i].resource) {
dev_warn(&vdev->dev, dev_warn(&vdev->dev,
"Unable to allocate slave resource\n"); "Unable to allocate slave resource\n");
err = -ENOMEM; err = -ENOMEM;
@ -645,7 +645,7 @@ static int vme_user_probe(struct vme_dev *vdev)
image[i].size_buf = PCI_BUF_SIZE; image[i].size_buf = PCI_BUF_SIZE;
image[i].kern_buf = vme_alloc_consistent(image[i].resource, image[i].kern_buf = vme_alloc_consistent(image[i].resource,
image[i].size_buf, &image[i].pci_buf); image[i].size_buf, &image[i].pci_buf);
if (image[i].kern_buf == NULL) { if (!image[i].kern_buf) {
dev_warn(&vdev->dev, dev_warn(&vdev->dev,
"Unable to allocate memory for buffer\n"); "Unable to allocate memory for buffer\n");
image[i].pci_buf = 0; image[i].pci_buf = 0;
@ -663,7 +663,7 @@ static int vme_user_probe(struct vme_dev *vdev)
/* XXX Need to properly request attributes */ /* XXX Need to properly request attributes */
image[i].resource = vme_master_request(vme_user_bridge, image[i].resource = vme_master_request(vme_user_bridge,
VME_A32, VME_SCT, VME_D32); VME_A32, VME_SCT, VME_D32);
if (image[i].resource == NULL) { if (!image[i].resource) {
dev_warn(&vdev->dev, dev_warn(&vdev->dev,
"Unable to allocate master resource\n"); "Unable to allocate master resource\n");
err = -ENOMEM; err = -ENOMEM;
@ -671,7 +671,7 @@ static int vme_user_probe(struct vme_dev *vdev)
} }
image[i].size_buf = PCI_BUF_SIZE; image[i].size_buf = PCI_BUF_SIZE;
image[i].kern_buf = kmalloc(image[i].size_buf, GFP_KERNEL); image[i].kern_buf = kmalloc(image[i].size_buf, GFP_KERNEL);
if (image[i].kern_buf == NULL) { if (!image[i].kern_buf) {
err = -ENOMEM; err = -ENOMEM;
vme_master_free(image[i].resource); vme_master_free(image[i].resource);
goto err_master; goto err_master;