From 09ff21e0f670a71ea43765cedaab9246fd81540e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 24 Aug 2010 13:45:49 +0800 Subject: [PATCH] mfd: Fix pcap_add_subdev error path 1. return -ENOMEM if platform_device_alloc() fail. 2. call platform_device_put() if platform_device_add() fail. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/ezx-pcap.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index 134c69aa479..d283d77937b 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) -- 2.41.0