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block: use pci_zalloc_consistent 

Remove the now unnecessary memset too.

Signed-off-by: Joe Perches <joe@perches.com>
Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2014-08-08 14:24:12 -07:00 committed by Linus Torvalds
parent 6f2a011afc
commit a5bbf6160c
3 changed files with 22 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/block/DAC960.c
View File

@ -6741,11 +6741,11 @@ static long DAC960_gam_ioctl(struct file *file, unsigned int Request,
ErrorCode = -ENOMEM;
if (DataTransferLength > 0)
{
DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice,
DataTransferLength, &DataTransferBufferDMA);
DataTransferBuffer = pci_zalloc_consistent(Controller->PCIDevice,
DataTransferLength,
&DataTransferBufferDMA);
if (DataTransferBuffer == NULL)
break;
memset(DataTransferBuffer, 0, DataTransferLength);
}
else if (DataTransferLength < 0)
{
@ -6877,11 +6877,11 @@ static long DAC960_gam_ioctl(struct file *file, unsigned int Request,
ErrorCode = -ENOMEM;
if (DataTransferLength > 0)
{
DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice,
DataTransferLength, &DataTransferBufferDMA);
DataTransferBuffer = pci_zalloc_consistent(Controller->PCIDevice,
DataTransferLength,
&DataTransferBufferDMA);
if (DataTransferBuffer == NULL)
break;
memset(DataTransferBuffer, 0, DataTransferLength);
}
else if (DataTransferLength < 0)
{
@ -6899,14 +6899,14 @@ static long DAC960_gam_ioctl(struct file *file, unsigned int Request,
RequestSenseLength = UserCommand.RequestSenseLength;
if (RequestSenseLength > 0)
{
RequestSenseBuffer = pci_alloc_consistent(Controller->PCIDevice,
RequestSenseLength, &RequestSenseBufferDMA);
RequestSenseBuffer = pci_zalloc_consistent(Controller->PCIDevice,
RequestSenseLength,
&RequestSenseBufferDMA);
if (RequestSenseBuffer == NULL)
{
ErrorCode = -ENOMEM;
goto Failure2;
}
memset(RequestSenseBuffer, 0, RequestSenseLength);
}
spin_lock_irqsave(&Controller->queue_lock, flags);
while ((Command = DAC960_AllocateCommand(Controller)) == NULL)

11
drivers/block/cciss.c
View File

@ -1014,24 +1014,21 @@ static CommandList_struct *cmd_special_alloc(ctlr_info_t *h)
u64bit temp64;
dma_addr_t cmd_dma_handle, err_dma_handle;
c = (CommandList_struct *) pci_alloc_consistent(h->pdev,
sizeof(CommandList_struct), &cmd_dma_handle);
c = pci_zalloc_consistent(h->pdev, sizeof(CommandList_struct),
&cmd_dma_handle);
if (c == NULL)
return NULL;
memset(c, 0, sizeof(CommandList_struct));
c->cmdindex = -1;
c->err_info = (ErrorInfo_struct *)
pci_alloc_consistent(h->pdev, sizeof(ErrorInfo_struct),
&err_dma_handle);
c->err_info = pci_zalloc_consistent(h->pdev, sizeof(ErrorInfo_struct),
&err_dma_handle);
if (c->err_info == NULL) {
pci_free_consistent(h->pdev,
sizeof(CommandList_struct), c, cmd_dma_handle);
return NULL;
}
memset(c->err_info, 0, sizeof(ErrorInfo_struct));
INIT_LIST_HEAD(&c->list);
c->busaddr = (__u32) cmd_dma_handle;

25
drivers/block/skd_main.c
View File

@ -4112,16 +4112,14 @@ static int skd_cons_skcomp(struct skd_device *skdev)
skdev->name, __func__, __LINE__,
nbytes, SKD_N_COMPLETION_ENTRY);
skcomp = pci_alloc_consistent(skdev->pdev, nbytes,
&skdev->cq_dma_address);
skcomp = pci_zalloc_consistent(skdev->pdev, nbytes,
&skdev->cq_dma_address);
if (skcomp == NULL) {
rc = -ENOMEM;
goto err_out;
}
memset(skcomp, 0, nbytes);
skdev->skcomp_table = skcomp;
skdev->skerr_table = (struct fit_comp_error_info *)((char *)skcomp +
sizeof(*skcomp) *
@ -4304,15 +4302,14 @@ static int skd_cons_skspcl(struct skd_device *skdev)
nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
skspcl->msg_buf = pci_alloc_consistent(skdev->pdev, nbytes,
&skspcl->mb_dma_address);
skspcl->msg_buf =
pci_zalloc_consistent(skdev->pdev, nbytes,
&skspcl->mb_dma_address);
if (skspcl->msg_buf == NULL) {
rc = -ENOMEM;
goto err_out;
}
memset(skspcl->msg_buf, 0, nbytes);
skspcl->req.sg = kzalloc(sizeof(struct scatterlist) *
SKD_N_SG_PER_SPECIAL, GFP_KERNEL);
if (skspcl->req.sg == NULL) {
@ -4353,25 +4350,21 @@ static int skd_cons_sksb(struct skd_device *skdev)
nbytes = SKD_N_INTERNAL_BYTES;
skspcl->data_buf = pci_alloc_consistent(skdev->pdev, nbytes,
&skspcl->db_dma_address);
skspcl->data_buf = pci_zalloc_consistent(skdev->pdev, nbytes,
&skspcl->db_dma_address);
if (skspcl->data_buf == NULL) {
rc = -ENOMEM;
goto err_out;
}
memset(skspcl->data_buf, 0, nbytes);
nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
skspcl->msg_buf = pci_alloc_consistent(skdev->pdev, nbytes,
&skspcl->mb_dma_address);
skspcl->msg_buf = pci_zalloc_consistent(skdev->pdev, nbytes,
&skspcl->mb_dma_address);
if (skspcl->msg_buf == NULL) {
rc = -ENOMEM;
goto err_out;
}
memset(skspcl->msg_buf, 0, nbytes);
skspcl->req.sksg_list = skd_cons_sg_list(skdev, 1,
&skspcl->req.sksg_dma_address);
if (skspcl->req.sksg_list == NULL) {