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Subject[PATCH 2/3] mfd: ezx-pcap - fix pcap_add_subdev error path
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1. return -ENOMEM if platform_device_alloc() fail.
2. call platform_device_put() if platform_device_add() fail.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/mfd/ezx-pcap.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 134c69a..d283d77 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -384,12 +384,20 @@ static int __devinit pcap_add_subdev(struct pcap_chip *pcap,
struct pcap_subdev *subdev)
{
struct platform_device *pdev;
+ int ret;

pdev = platform_device_alloc(subdev->name, subdev->id);
+ if (!pdev)
+ return -ENOMEM;
+
pdev->dev.parent = &pcap->spi->dev;
pdev->dev.platform_data = subdev->platform_data;

- return platform_device_add(pdev);
+ ret = platform_device_add(pdev);
+ if (ret)
+ platform_device_put(pdev);
+
+ return ret;
}

static int __devexit ezx_pcap_remove(struct spi_device *spi)
--
1.7.2




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