@@ -2498,18 +2498,16 @@ static struct quattro *quattro_sbus_find(struct platform_device *child)
return qp;
qp = kmalloc(sizeof(struct quattro), GFP_KERNEL);
- if (qp != NULL) {
- int i;
+ if (!qp)
+ return NULL;
- for (i = 0; i < 4; i++)
- qp->happy_meals[i] = NULL;
+ memset(qp->happy_meals, 0, sizeof(*qp->happy_meals));
- qp->quattro_dev = child;
- qp->next = qfe_sbus_list;
- qfe_sbus_list = qp;
+ qp->quattro_dev = child;
+ qp->next = qfe_sbus_list;
+ qfe_sbus_list = qp;
- platform_set_drvdata(op, qp);
- }
+ platform_set_drvdata(op, qp);
return qp;
}
@@ -2569,30 +2567,33 @@ static void quattro_sbus_free_irqs(void)
#ifdef CONFIG_PCI
static struct quattro *quattro_pci_find(struct pci_dev *pdev)
{
+ int i;
struct pci_dev *bdev = pdev->bus->self;
struct quattro *qp;
- if (!bdev) return NULL;
+ if (!bdev)
+ return ERR_PTR(-ENODEV);
+
for (qp = qfe_pci_list; qp != NULL; qp = qp->next) {
struct pci_dev *qpdev = qp->quattro_dev;
if (qpdev == bdev)
return qp;
}
+
qp = kmalloc(sizeof(struct quattro), GFP_KERNEL);
- if (qp != NULL) {
- int i;
+ if (!qp)
+ return ERR_PTR(-ENOMEM);
- for (i = 0; i < 4; i++)
- qp->happy_meals[i] = NULL;
+ for (i = 0; i < 4; i++)
+ qp->happy_meals[i] = NULL;
- qp->quattro_dev = bdev;
- qp->next = qfe_pci_list;
- qfe_pci_list = qp;
+ qp->quattro_dev = bdev;
+ qp->next = qfe_pci_list;
+ qfe_pci_list = qp;
- /* No range tricks necessary on PCI. */
- qp->nranges = 0;
- }
+ /* No range tricks necessary on PCI. */
+ qp->nranges = 0;
return qp;
}
#endif /* CONFIG_PCI */
@@ -2948,11 +2949,15 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
if (!strcmp(prom_name, "SUNW,qfe") || !strcmp(prom_name, "qfe")) {
qp = quattro_pci_find(pdev);
- if (qp == NULL)
+ if (IS_ERR(qp)) {
+ err = PTR_ERR(qp);
goto err_out;
+ }
+
for (qfe_slot = 0; qfe_slot < 4; qfe_slot++)
- if (qp->happy_meals[qfe_slot] == NULL)
+ if (!qp->happy_meals[qfe_slot])
break;
+
if (qfe_slot == 4)
goto err_out;
}
In order to differentiate between a missing bridge and an OOM condition, return ERR_PTRs from quattro_pci_find. This also does some general linting in the area. Signed-off-by: Sean Anderson <seanga2@gmail.com> --- Changes in v2: - Use memset to clear p->happy_meals drivers/net/ethernet/sun/sunhme.c | 49 +++++++++++++++++-------------- 1 file changed, 27 insertions(+), 22 deletions(-)