mfd: ezx-pcap: Use devm_*() functions

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 7 insertions, 10 deletions

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index b7a61f0f27a4..f83cc3da9308 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -403,7 +403,7 @@ static int ezx_pcap_remove(struct spi_device *spi)
         /* cleanup ADC */
         adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
                                 PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
-        free_irq(adc_irq, pcap);
+        devm_free_irq(&spi->dev, adc_irq, pcap);
         mutex_lock(&pcap->adc_mutex);
         for (i = 0; i < PCAP_ADC_MAXQ; i++)
                 kfree(pcap->adc_queue[i]);
@@ -415,8 +415,6 @@ static int ezx_pcap_remove(struct spi_device *spi)
 
         destroy_workqueue(pcap->workqueue);
 
-        kfree(pcap);
-
         return 0;
 }
 
@@ -431,7 +429,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
         if (!pdata)
                 goto ret;
 
-        pcap = kzalloc(sizeof(*pcap), GFP_KERNEL);
+        pcap = devm_kzalloc(&spi->dev, sizeof(*pcap), GFP_KERNEL);
         if (!pcap) {
                 ret = -ENOMEM;
                 goto ret;
@@ -448,7 +446,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
         spi->mode = SPI_MODE_0 | (pdata->config & PCAP_CS_AH ? SPI_CS_HIGH : 0);
         ret = spi_setup(spi);
         if (ret)
-                goto free_pcap;
+                goto ret;
 
         pcap->spi = spi;
 
@@ -458,7 +456,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
         if (!pcap->workqueue) {
                 ret = -ENOMEM;
                 dev_err(&spi->dev, "can't create pcap thread\n");
-                goto free_pcap;
+                goto ret;
         }
 
         /* redirect interrupts to AP, except adcdone2 */
@@ -491,7 +489,8 @@ static int ezx_pcap_probe(struct spi_device *spi)
         adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
                                         PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
 
-        ret = request_irq(adc_irq, pcap_adc_irq, 0, "ADC", pcap);
+        ret = devm_request_irq(&spi->dev, adc_irq, pcap_adc_irq, 0, "ADC",
+                                pcap);
         if (ret)
                 goto free_irqchip;
 
@@ -511,14 +510,12 @@ static int ezx_pcap_probe(struct spi_device *spi)
 remove_subdevs:
         device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
 /* free_adc: */
-        free_irq(adc_irq, pcap);
+        devm_free_irq(&spi->dev, adc_irq, pcap);
 free_irqchip:
         for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
                 irq_set_chip_and_handler(i, NULL, NULL);
 /* destroy_workqueue: */
         destroy_workqueue(pcap->workqueue);
-free_pcap:
-        kfree(pcap);
 ret:
         return ret;
 }