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authorMarkus Elfring <elfring@users.sourceforge.net>2017-08-25 11:55:03 +0200
committerMartyn Welch <martyn.welch@collabora.co.uk>2017-10-13 22:32:04 +0200
commit6d011dd876cb825b2e1213daaabda07e1151fc6a (patch)
tree55b44fafe8352debd881c8104ef8f28d19b75dbd /drivers/vme/bridges
parentvme: tsi148: Delete nine error messages for a failed memory allocation (diff)
downloadlinux-6d011dd876cb825b2e1213daaabda07e1151fc6a.tar.xz
linux-6d011dd876cb825b2e1213daaabda07e1151fc6a.zip
vme: tsi148: Improve 17 size determinations
Replace the specification of data structures by variable references as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> [martyn@welchs.me.uk: Correct long line] Signed-off-by: Martyn Welch <martyn@welchs.me.uk>
Diffstat (limited to 'drivers/vme/bridges')
-rw-r--r--drivers/vme/bridges/vme_tsi148.c37
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index fb91fddc6312..946f62597360 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -741,7 +741,7 @@ static int tsi148_alloc_resource(struct vme_master_resource *image,
image->kern_base = NULL;
kfree(image->bus_resource.name);
release_resource(&image->bus_resource);
- memset(&image->bus_resource, 0, sizeof(struct resource));
+ memset(&image->bus_resource, 0, sizeof(image->bus_resource));
}
/* Exit here if size is zero */
@@ -788,7 +788,7 @@ err_remap:
release_resource(&image->bus_resource);
err_resource:
kfree(image->bus_resource.name);
- memset(&image->bus_resource, 0, sizeof(struct resource));
+ memset(&image->bus_resource, 0, sizeof(image->bus_resource));
err_name:
return retval;
}
@@ -802,7 +802,7 @@ static void tsi148_free_resource(struct vme_master_resource *image)
image->kern_base = NULL;
release_resource(&image->bus_resource);
kfree(image->bus_resource.name);
- memset(&image->bus_resource, 0, sizeof(struct resource));
+ memset(&image->bus_resource, 0, sizeof(image->bus_resource));
}
/*
@@ -1639,7 +1639,7 @@ static int tsi148_dma_list_add(struct vme_dma_list *list,
tsi148_bridge = list->parent->parent;
/* Descriptor must be aligned on 64-bit boundaries */
- entry = kmalloc(sizeof(struct tsi148_dma_entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (entry == NULL) {
retval = -ENOMEM;
goto err_mem;
@@ -1657,7 +1657,7 @@ static int tsi148_dma_list_add(struct vme_dma_list *list,
/* Given we are going to fill out the structure, we probably don't
* need to zero it, but better safe than sorry for now.
*/
- memset(&entry->descriptor, 0, sizeof(struct tsi148_dma_descriptor));
+ memset(&entry->descriptor, 0, sizeof(entry->descriptor));
/* Fill out source part */
switch (src->type) {
@@ -1752,8 +1752,9 @@ static int tsi148_dma_list_add(struct vme_dma_list *list,
list_add_tail(&entry->list, &list->entries);
entry->dma_handle = dma_map_single(tsi148_bridge->parent,
- &entry->descriptor,
- sizeof(struct tsi148_dma_descriptor), DMA_TO_DEVICE);
+ &entry->descriptor,
+ sizeof(entry->descriptor),
+ DMA_TO_DEVICE);
if (dma_mapping_error(tsi148_bridge->parent, entry->dma_handle)) {
dev_err(tsi148_bridge->parent, "DMA mapping error\n");
retval = -EINVAL;
@@ -2290,14 +2291,14 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* If we want to support more than one of each bridge, we need to
* dynamically generate this so we get one per device
*/
- tsi148_bridge = kzalloc(sizeof(struct vme_bridge), GFP_KERNEL);
+ tsi148_bridge = kzalloc(sizeof(*tsi148_bridge), GFP_KERNEL);
if (tsi148_bridge == NULL) {
retval = -ENOMEM;
goto err_struct;
}
vme_init_bridge(tsi148_bridge);
- tsi148_device = kzalloc(sizeof(struct tsi148_driver), GFP_KERNEL);
+ tsi148_device = kzalloc(sizeof(*tsi148_device), GFP_KERNEL);
if (tsi148_device == NULL) {
retval = -ENOMEM;
goto err_driver;
@@ -2363,7 +2364,8 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
master_num--;
tsi148_device->flush_image =
- kmalloc(sizeof(struct vme_master_resource), GFP_KERNEL);
+ kmalloc(sizeof(*tsi148_device->flush_image),
+ GFP_KERNEL);
if (tsi148_device->flush_image == NULL) {
retval = -ENOMEM;
goto err_master;
@@ -2373,14 +2375,13 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
tsi148_device->flush_image->locked = 1;
tsi148_device->flush_image->number = master_num;
memset(&tsi148_device->flush_image->bus_resource, 0,
- sizeof(struct resource));
+ sizeof(tsi148_device->flush_image->bus_resource));
tsi148_device->flush_image->kern_base = NULL;
}
/* Add master windows to list */
for (i = 0; i < master_num; i++) {
- master_image = kmalloc(sizeof(struct vme_master_resource),
- GFP_KERNEL);
+ master_image = kmalloc(sizeof(*master_image), GFP_KERNEL);
if (master_image == NULL) {
retval = -ENOMEM;
goto err_master;
@@ -2398,7 +2399,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
VME_PROG | VME_DATA;
master_image->width_attr = VME_D16 | VME_D32;
memset(&master_image->bus_resource, 0,
- sizeof(struct resource));
+ sizeof(master_image->bus_resource));
master_image->kern_base = NULL;
list_add_tail(&master_image->list,
&tsi148_bridge->master_resources);
@@ -2406,8 +2407,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* Add slave windows to list */
for (i = 0; i < TSI148_MAX_SLAVE; i++) {
- slave_image = kmalloc(sizeof(struct vme_slave_resource),
- GFP_KERNEL);
+ slave_image = kmalloc(sizeof(*slave_image), GFP_KERNEL);
if (slave_image == NULL) {
retval = -ENOMEM;
goto err_slave;
@@ -2428,8 +2428,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* Add dma engines to list */
for (i = 0; i < TSI148_MAX_DMA; i++) {
- dma_ctrlr = kmalloc(sizeof(struct vme_dma_resource),
- GFP_KERNEL);
+ dma_ctrlr = kmalloc(sizeof(*dma_ctrlr), GFP_KERNEL);
if (dma_ctrlr == NULL) {
retval = -ENOMEM;
goto err_dma;
@@ -2449,7 +2448,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
/* Add location monitor to list */
- lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL);
+ lm = kmalloc(sizeof(*lm), GFP_KERNEL);
if (lm == NULL) {
retval = -ENOMEM;
goto err_lm;