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Commit 4b290439 authored by Roland Dreier's avatar Roland Dreier
Browse files

RDMA/amso1100: Don't use 0UL as a NULL pointer 



Write tests for NULL pointers as

	if (!ptr)

instead of

	if (ptr == 0UL)

to fix sparse warnings.

Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
Acked-by: default avatarSteve Wise <swise@opengridcomputing.com>
parent ca281211

drivers/infiniband/hw/amso1100/c2.c

+5 −5
Original line number Diff line number Diff line
@@ -1005,7 +1005,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev, 
	/* Remap the adapter PCI registers in BAR4 */

	mmio_regs = ioremap_nocache(reg4_start + C2_PCI_REGS_OFFSET,

				    sizeof(struct c2_adapter_pci_regs));

	if (mmio_regs == 0UL) {

	if (!mmio_regs) {

		printk(KERN_ERR PFX

			"Unable to remap adapter PCI registers in BAR4\n");

		ret = -EIO;
@@ -1109,7 +1109,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev, 
	/* Remap the adapter HRXDQ PA space to kernel VA space */

	c2dev->mmio_rxp_ring = ioremap_nocache(reg4_start + C2_RXP_HRXDQ_OFFSET,

					       C2_RXP_HRXDQ_SIZE);

	if (c2dev->mmio_rxp_ring == 0UL) {

	if (!c2dev->mmio_rxp_ring) {

		printk(KERN_ERR PFX "Unable to remap MMIO HRXDQ region\n");

		ret = -EIO;

		goto bail6;
@@ -1118,7 +1118,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev, 
	/* Remap the adapter HTXDQ PA space to kernel VA space */

	c2dev->mmio_txp_ring = ioremap_nocache(reg4_start + C2_TXP_HTXDQ_OFFSET,

					       C2_TXP_HTXDQ_SIZE);

	if (c2dev->mmio_txp_ring == 0UL) {

	if (!c2dev->mmio_txp_ring) {

		printk(KERN_ERR PFX "Unable to remap MMIO HTXDQ region\n");

		ret = -EIO;

		goto bail7;
@@ -1129,7 +1129,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev, 


	/* Remap the PCI registers in adapter BAR0 to kernel VA space */

	c2dev->regs = ioremap_nocache(reg0_start, reg0_len);

	if (c2dev->regs == 0UL) {

	if (!c2dev->regs) {

		printk(KERN_ERR PFX "Unable to remap BAR0\n");

		ret = -EIO;

		goto bail8;
@@ -1139,7 +1139,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev, 
	c2dev->pa = reg4_start + C2_PCI_REGS_OFFSET;

	c2dev->kva = ioremap_nocache(reg4_start + C2_PCI_REGS_OFFSET,

				     kva_map_size);

	if (c2dev->kva == 0UL) {

	if (!c2dev->kva) {

		printk(KERN_ERR PFX "Unable to remap BAR4\n");

		ret = -EIO;

		goto bail9;