mfd: db8500-prcmu: Provide sane error path values

Also rid superfluous gotos and label.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 8 insertions, 11 deletions

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 89ae8bf665b4..a8204730f01c 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -3150,27 +3150,27 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu");
         if (!res) {
                 dev_err(&pdev->dev, "no prcmu memory region provided\n");
-                return -ENOENT;
+                return -EINVAL;
         }
         prcmu_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
         if (!prcmu_base) {
                 dev_err(&pdev->dev,
                         "failed to ioremap prcmu register memory\n");
-                return -ENOENT;
+                return -ENOMEM;
         }
         init_prcm_registers();
         dbx500_fw_version_init(pdev, pdata->version_offset);
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu-tcdm");
         if (!res) {
                 dev_err(&pdev->dev, "no prcmu tcdm region provided\n");
-                return -ENOENT;
+                return -EINVAL;
         }
         tcdm_base = devm_ioremap(&pdev->dev, res->start,
                         resource_size(res));
         if (!tcdm_base) {
                 dev_err(&pdev->dev,
                         "failed to ioremap prcmu-tcdm register memory\n");
-                return -ENOENT;
+                return -ENOMEM;
         }
 
         /* Clean up the mailbox interrupts after pre-kernel code. */
@@ -3179,15 +3179,14 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
         irq = platform_get_irq(pdev, 0);
         if (irq <= 0) {
                 dev_err(&pdev->dev, "no prcmu irq provided\n");
-                return -ENOENT;
+                return irq;
         }
 
         err = request_threaded_irq(irq, prcmu_irq_handler,
                 prcmu_irq_thread_fn, IRQF_NO_SUSPEND, "prcmu", NULL);
         if (err < 0) {
                 pr_err("prcmu: Failed to allocate IRQ_DB8500_PRCMU1.\n");
-                err = -EBUSY;
-                goto no_irq_return;
+                return err;
         }
 
         db8500_irq_init(np);
@@ -3211,7 +3210,7 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
                 if (err) {
                         mfd_remove_devices(&pdev->dev);
                         pr_err("prcmu: Failed to add subdevices\n");
-                        goto no_irq_return;
+                        return err;
                 }
         }
 
@@ -3219,12 +3218,10 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
         if (err) {
                 mfd_remove_devices(&pdev->dev);
                 pr_err("prcmu: Failed to add ab8500 subdevice\n");
-                goto no_irq_return;
+                return err;
         }
 
         pr_info("DB8500 PRCMU initialized\n");
-
-no_irq_return:
         return err;
 }
 static const struct of_device_id db8500_prcmu_match[] = {