staging: slicoss: ensure mapping of io-memory is uncached

Writes to registers should be done uncached for various reasons. Ensure
this by replacing ioremap() with ioremap_nocache().

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index a9323a9..4dba080 100644 (file)
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -3136,7 +3136,7 @@ static int slic_entry_probe(struct pci_dev *pcidev,
        mmio_start = pci_resource_start(pcidev, 0);
        mmio_len = pci_resource_len(pcidev, 0);
 
-       memmapped_ioaddr = ioremap(mmio_start, mmio_len);
+       memmapped_ioaddr = ioremap_nocache(mmio_start, mmio_len);
        if (!memmapped_ioaddr) {
                dev_err(&pcidev->dev, "cannot remap MMIO region %lx @ %lx\n",
                        mmio_len, mmio_start);