From 8d97931740cff8f4eea62f5690e470444905db60 Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Fri, 25 Aug 2017 11:01:29 +0200 Subject: vme: ca91cx42: Adjust 14 checks for null pointers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Martyn Welch --- drivers/vme/bridges/vme_ca91cx42.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers/vme') diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c index 61990c7f4543..5dd284008630 100644 --- a/drivers/vme/bridges/vme_ca91cx42.c +++ b/drivers/vme/bridges/vme_ca91cx42.c @@ -511,7 +511,7 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image, ca91cx42_bridge = image->parent; /* Find pci_dev container of dev */ - if (ca91cx42_bridge->parent == NULL) { + if (!ca91cx42_bridge->parent) { dev_err(ca91cx42_bridge->parent, "Dev entry NULL\n"); return -EINVAL; } @@ -532,9 +532,9 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image, memset(&image->bus_resource, 0, sizeof(image->bus_resource)); } - if (image->bus_resource.name == NULL) { + if (!image->bus_resource.name) { image->bus_resource.name = kmalloc(VMENAMSIZ+3, GFP_ATOMIC); - if (image->bus_resource.name == NULL) { + if (!image->bus_resource.name) { retval = -ENOMEM; goto err_name; } @@ -560,7 +560,7 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image, image->kern_base = ioremap_nocache( image->bus_resource.start, size); - if (image->kern_base == NULL) { + if (!image->kern_base) { dev_err(ca91cx42_bridge->parent, "Failed to remap resource\n"); retval = -ENOMEM; goto err_remap; @@ -1035,7 +1035,7 @@ static int ca91cx42_dma_list_add(struct vme_dma_list *list, /* XXX descriptor must be aligned on 64-bit boundaries */ entry = kmalloc(sizeof(*entry), GFP_KERNEL); - if (entry == NULL) { + if (!entry) { retval = -ENOMEM; goto err_mem; } @@ -1319,7 +1319,7 @@ static int ca91cx42_lm_set(struct vme_lm_resource *lm, /* If we already have a callback attached, we can't move it! */ for (i = 0; i < lm->monitors; i++) { - if (bridge->lm_callback[i] != NULL) { + if (bridge->lm_callback[i]) { mutex_unlock(&lm->mtx); dev_err(dev, "Location monitor callback attached, " "can't reset\n"); @@ -1428,7 +1428,7 @@ static int ca91cx42_lm_attach(struct vme_lm_resource *lm, int monitor, } /* Check that a callback isn't already attached */ - if (bridge->lm_callback[monitor] != NULL) { + if (bridge->lm_callback[monitor]) { mutex_unlock(&lm->mtx); dev_err(dev, "Existing callback attached\n"); return -EBUSY; @@ -1563,7 +1563,7 @@ static int ca91cx42_crcsr_init(struct vme_bridge *ca91cx42_bridge, /* Allocate mem for CR/CSR image */ bridge->crcsr_kernel = pci_zalloc_consistent(pdev, VME_CRCSR_BUF_SIZE, &bridge->crcsr_bus); - if (bridge->crcsr_kernel == NULL) { + if (!bridge->crcsr_kernel) { dev_err(&pdev->dev, "Failed to allocate memory for CR/CSR " "image\n"); return -ENOMEM; @@ -1615,14 +1615,14 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) * dynamically allocate the bridge structure */ ca91cx42_bridge = kzalloc(sizeof(*ca91cx42_bridge), GFP_KERNEL); - if (ca91cx42_bridge == NULL) { + if (!ca91cx42_bridge) { retval = -ENOMEM; goto err_struct; } vme_init_bridge(ca91cx42_bridge); ca91cx42_device = kzalloc(sizeof(*ca91cx42_device), GFP_KERNEL); - if (ca91cx42_device == NULL) { + if (!ca91cx42_device) { retval = -ENOMEM; goto err_driver; } @@ -1679,7 +1679,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* Add master windows to list */ for (i = 0; i < CA91C142_MAX_MASTER; i++) { master_image = kmalloc(sizeof(*master_image), GFP_KERNEL); - if (master_image == NULL) { + if (!master_image) { retval = -ENOMEM; goto err_master; } @@ -1702,7 +1702,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* Add slave windows to list */ for (i = 0; i < CA91C142_MAX_SLAVE; i++) { slave_image = kmalloc(sizeof(*slave_image), GFP_KERNEL); - if (slave_image == NULL) { + if (!slave_image) { retval = -ENOMEM; goto err_slave; } @@ -1726,7 +1726,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* Add dma engines to list */ for (i = 0; i < CA91C142_MAX_DMA; i++) { dma_ctrlr = kmalloc(sizeof(*dma_ctrlr), GFP_KERNEL); - if (dma_ctrlr == NULL) { + if (!dma_ctrlr) { retval = -ENOMEM; goto err_dma; } @@ -1744,7 +1744,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* Add location monitor to list */ lm = kmalloc(sizeof(*lm), GFP_KERNEL); - if (lm == NULL) { + if (!lm) { retval = -ENOMEM; goto err_lm; } -- cgit