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: Roland Dreier <rolandd@cisco.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>

diff --git a/drivers/infiniband/hw/amso1100/c2.c b/drivers/infiniband/hw/amso1100/c2.c
index f283a9f0c23b198e616f041b1aa1e4f5713c60fb..c50533b5999f28b95473d10a0439b060b754a34a 100644 (file)
--- a/drivers/infiniband/hw/amso1100/c2.c
+++ b/drivers/infiniband/hw/amso1100/c2.c
@@ -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;