1 files changed, 26 insertions, 17 deletions

diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index f109551eeda..03dcc920070 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -553,9 +553,14 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 {
         struct pcf50633 *pcf;
         struct pcf50633_platform_data *pdata = client->dev.platform_data;
-        int i, ret = 0;
+        int i, ret;
         int version, variant;
 
+        if (!client->irq) {
+                dev_err(&client->dev, "Missing IRQ\n");
+                return -ENOENT;
+        }
+
         pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
         if (!pcf)
                 return -ENOMEM;
@@ -570,6 +575,12 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
         pcf->irq = client->irq;
         pcf->work_queue = create_singlethread_workqueue("pcf50633");
 
+        if (!pcf->work_queue) {
+                dev_err(&client->dev, "Failed to alloc workqueue\n");
+                ret = -ENOMEM;
+                goto err_free;
+        }
+
         INIT_WORK(&pcf->irq_work, pcf50633_irq_worker);
 
         version = pcf50633_reg_read(pcf, 0);
@@ -577,7 +588,7 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
         if (version < 0 || variant < 0) {
                 dev_err(pcf->dev, "Unable to probe pcf50633\n");
                 ret = -ENODEV;
-                goto err;
+                goto err_destroy_workqueue;
         }
 
         dev_info(pcf->dev, "Probed device version %d variant %d\n",
@@ -591,6 +602,14 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
         pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
         pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
 
+        ret = request_irq(client->irq, pcf50633_irq,
+                                        IRQF_TRIGGER_LOW, "pcf50633", pcf);
+
+        if (ret) {
+                dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
+                goto err_destroy_workqueue;
+        }
+
         /* Create sub devices */
         pcf50633_client_dev_register(pcf, "pcf50633-input",
                                                 &pcf->input_pdev);
@@ -606,7 +625,7 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 
                 pdev = platform_device_alloc("pcf50633-regltr", i);
                 if (!pdev) {
-                        dev_err(pcf->dev, "Cannot create regulator\n");
+                        dev_err(pcf->dev, "Cannot create regulator %d\n", i);
                         continue;
                 }
 
@@ -618,19 +637,6 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
                 platform_device_add(pdev);
         }
 
-        if (client->irq) {
-                ret = request_irq(client->irq, pcf50633_irq,
-                                IRQF_TRIGGER_LOW, "pcf50633", pcf);
-
-                if (ret) {
-                        dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
-                        goto err;
-                }
-        } else {
-                dev_err(pcf->dev, "No IRQ configured\n");
-                goto err;
-        }
-
         if (enable_irq_wake(client->irq) < 0)
                 dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
                         "in this hardware revision", client->irq);
@@ -644,9 +650,12 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 
         return 0;
 
-err:
+err_destroy_workqueue:
         destroy_workqueue(pcf->work_queue);
+err_free:
+        i2c_set_clientdata(client, NULL);
         kfree(pcf);
+
         return ret;
 }