From e28f701b21ee4b4eb716e4717fa2aa78c28a8523 Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Thu, 2 Feb 2017 18:52:34 +0530 Subject: [PATCH] parisc: ccio-dma: Handle return NULL error from ioremap_nocache Fix error paths and return -ENOMEM instead of '1'. Signed-off-by: Arvind Yadav Signed-off-by: Helge Deller --- drivers/parisc/ccio-dma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 553ef8a5d588..b0558e2451b5 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -1539,7 +1539,7 @@ static int __init ccio_probe(struct parisc_device *dev) ioc = kzalloc(sizeof(struct ioc), GFP_KERNEL); if (ioc == NULL) { printk(KERN_ERR MODULE_NAME ": memory allocation failure\n"); - return 1; + return -ENOMEM; } ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn"; @@ -1554,6 +1554,10 @@ static int __init ccio_probe(struct parisc_device *dev) ioc->hw_path = dev->hw_path; ioc->ioc_regs = ioremap_nocache(dev->hpa.start, 4096); + if (!ioc->ioc_regs) { + kfree(ioc); + return -ENOMEM; + } ccio_ioc_init(ioc); ccio_init_resources(ioc); hppa_dma_ops = &ccio_ops;