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Subject[PATCH v2 1/2] staging: kpc2000: improve label names in kp2000_pcie_probe
Date
Use self-explanatory label names instead of the generic numbered ones,
to make it easier to follow and understand the code.

Signed-off-by: Simon Sandström <simon@nikanor.nu>
---
drivers/staging/kpc2000/kpc2000/core.c | 42 ++++++++++++--------------
1 file changed, 20 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc2000/core.c b/drivers/staging/kpc2000/kpc2000/core.c
index 9b9b29ac90c5..ee6b9be7127d 100644
--- a/drivers/staging/kpc2000/kpc2000/core.c
+++ b/drivers/staging/kpc2000/kpc2000/core.c
@@ -327,7 +327,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
if (err < 0) {
dev_err(&pdev->dev, "probe: failed to get card number (%d)\n",
err);
- goto out2;
+ goto err_free_pcard;
}
pcard->card_num = err;
scnprintf(pcard->name, 16, "kpcard%u", pcard->card_num);
@@ -346,7 +346,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
dev_err(&pcard->pdev->dev,
"probe: failed to enable PCIE2000 PCIe device (%d)\n",
err);
- goto out3;
+ goto err_remove_ida;
}

/*
@@ -360,7 +360,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
dev_err(&pcard->pdev->dev,
"probe: REG_BAR could not remap memory to virtual space\n");
err = -ENODEV;
- goto out4;
+ goto err_disable_device;
}
dev_dbg(&pcard->pdev->dev,
"probe: REG_BAR virt hardware address start [%p]\n",
@@ -373,7 +373,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
"probe: failed to acquire PCI region (%d)\n",
err);
err = -ENODEV;
- goto out4;
+ goto err_disable_device;
}

pcard->regs_base_resource.start = reg_bar_phys_addr;
@@ -393,7 +393,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
dev_err(&pcard->pdev->dev,
"probe: DMA_BAR could not remap memory to virtual space\n");
err = -ENODEV;
- goto out5;
+ goto err_unmap_regs;
}
dev_dbg(&pcard->pdev->dev,
"probe: DMA_BAR virt hardware address start [%p]\n",
@@ -407,7 +407,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
dev_err(&pcard->pdev->dev,
"probe: failed to acquire PCI region (%d)\n", err);
err = -ENODEV;
- goto out5;
+ goto err_unmap_regs;
}

pcard->dma_base_resource.start = dma_bar_phys_addr;
@@ -421,7 +421,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
pcard->sysinfo_regs_base = pcard->regs_bar_base;
err = read_system_regs(pcard);
if (err)
- goto out6;
+ goto err_unmap_dma;

// Disable all "user" interrupts because they're not used yet.
writeq(0xFFFFFFFFFFFFFFFF,
@@ -461,7 +461,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
if (err) {
dev_err(&pcard->pdev->dev,
"CANNOT use DMA mask %0llx\n", DMA_BIT_MASK(64));
- goto out7;
+ goto err_unmap_dma;
}
dev_dbg(&pcard->pdev->dev,
"Using DMA mask %0llx\n", dma_get_mask(PCARD_TO_DEV(pcard)));
@@ -471,14 +471,14 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
*/
err = pci_enable_msi(pcard->pdev);
if (err < 0)
- goto out8a;
+ goto err_unmap_dma;

rv = request_irq(pcard->pdev->irq, kp2000_irq_handler, IRQF_SHARED,
pcard->name, pcard);
if (rv) {
dev_err(&pcard->pdev->dev,
"%s: failed to request_irq: %d\n", __func__, rv);
- goto out8b;
+ goto err_disable_msi;
}

/*
@@ -487,7 +487,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
err = sysfs_create_files(&pdev->dev.kobj, kp_attr_list);
if (err) {
dev_err(&pdev->dev, "Failed to add sysfs files: %d\n", err);
- goto out9;
+ goto err_free_irq;
}

/*
@@ -495,7 +495,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
*/
err = kp2000_probe_cores(pcard);
if (err)
- goto out10;
+ goto err_remove_sysfs;

/*
* Step 11: Enable IRQs in HW
@@ -506,28 +506,26 @@ static int kp2000_pcie_probe(struct pci_dev *pdev,
mutex_unlock(&pcard->sem);
return 0;

-out10:
+err_remove_sysfs:
sysfs_remove_files(&pdev->dev.kobj, kp_attr_list);
-out9:
+err_free_irq:
free_irq(pcard->pdev->irq, pcard);
-out8b:
+err_disable_msi:
pci_disable_msi(pcard->pdev);
-out8a:
-out7:
-out6:
+err_unmap_dma:
iounmap(pcard->dma_bar_base);
pci_release_region(pdev, DMA_BAR);
pcard->dma_bar_base = NULL;
-out5:
+err_unmap_regs:
iounmap(pcard->regs_bar_base);
pci_release_region(pdev, REG_BAR);
pcard->regs_bar_base = NULL;
-out4:
+err_disable_device:
pci_disable_device(pcard->pdev);
-out3:
+err_remove_ida:
mutex_unlock(&pcard->sem);
ida_simple_remove(&card_num_ida, pcard->card_num);
-out2:
+err_free_pcard:
kfree(pcard);
return err;
}
--
2.20.1
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