[PATCH 1/3] staging: ccree: simplify error handling logic

[Gilad Ben-Yossef]

Turn the code sites that don't require any special handling
on error return to a simple return.

Signed-off-by: Gilad Ben-Yossef <gi...@benyossef.com>
---
 drivers/staging/ccree/ssi_driver.c | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/ccree/ssi_driver.c 
b/drivers/staging/ccree/ssi_driver.c
index 1d4c7bb..135a7e2 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -212,10 +212,9 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        int rc = 0;
 
        new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL);
-       if (!new_drvdata) {
-               rc = -ENOMEM;
-               goto post_drvdata_err;
-       }
+       if (!new_drvdata)
+               return -ENOMEM;
+
        platform_set_drvdata(plat_dev, new_drvdata);
        new_drvdata->plat_dev = plat_dev;
 
@@ -229,8 +228,7 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        new_drvdata->cc_base = devm_ioremap_resource(dev, req_mem_cc_regs);
        if (IS_ERR(new_drvdata->cc_base)) {
                dev_err(dev, "Failed to ioremap registers");
-               rc = PTR_ERR(new_drvdata->cc_base);
-               goto post_drvdata_err;
+               return PTR_ERR(new_drvdata->cc_base);
        }
 
        dev_dbg(dev, "Got MEM resource (%s): %pR\n", req_mem_cc_regs->name,
@@ -244,8 +242,7 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        new_drvdata->irq = platform_get_irq(plat_dev, 0);
        if (new_drvdata->irq < 0) {
                dev_err(dev, "Failed getting IRQ resource\n");
-               rc = new_drvdata->irq;
-               goto post_drvdata_err;
+               return new_drvdata->irq;
        }
 
        rc = devm_request_irq(dev, new_drvdata->irq, cc_isr,
@@ -253,7 +250,7 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        if (rc) {
                dev_err(dev, "Could not register to interrupt %d\n",
                        new_drvdata->irq);
-               goto post_drvdata_err;
+               return rc;
        }
        dev_dbg(dev, "Registered to IRQ: %d\n", new_drvdata->irq);
 
@@ -271,15 +268,16 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        }
 
        if (rc) {
-               dev_err(dev, "Error: failed in dma_set_mask, mask=%par\n",
+               dev_err(dev, "Failed in dma_set_mask, mask=%par\n",
                        &dma_mask);
-               goto post_drvdata_err;
+               return rc;
        }
 
        rc = cc_clk_on(new_drvdata);
-       if (rc)
-               goto post_drvdata_err;
-
+       if (rc) {
+               dev_err(dev, "Failed to enable clock");
+               return rc;
+       }
 
        /* Verify correct mapping */
        signature_val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, 
HOST_SIGNATURE));
@@ -406,8 +404,6 @@ static int init_cc_resources(struct platform_device 
*plat_dev)
        fini_cc_regs(new_drvdata);
 post_clk_err:
        cc_clk_off(new_drvdata);
-post_drvdata_err:
-       dev_err(dev, "ccree init error occurred!\n");
        return rc;
 }
 
-- 
2.7.4