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parisc: ccio-dma: Handle return NULL error from ioremap_nocache 

Fix error paths and return -ENOMEM instead of '1'.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Arvind Yadav 2017-02-02 18:52:34 +05:30 committed by Helge Deller
parent 09b871ffd4
commit e28f701b21
1 changed files with 5 additions and 1 deletions
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6
drivers/parisc/ccio-dma.c
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@ -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;