spi: dw-pci: fix bug when regs left uninitialized

The commit 04f421e7 "spi: dw: use managed resources" changes drivers to use
managed functions, but seems wasn't properly tested in PCI case. The regs field
of struct dw_spi left uninitialized. Thus, kernel crashes when tries to access
to the SPI controller registers. This patch fixes the issue.

Fixes: 04f421e7 (spi: dw: use managed resources)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 3f3dc1226edf19aefad97630e2112287f419cabc..e14960470d8d46a96eef045f612cc4bd23c1a7cb 100644 (file)
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -62,6 +62,8 @@ static int spi_pci_probe(struct pci_dev *pdev,
        if (ret)
                return ret;
 
+       dws->regs = pcim_iomap_table(pdev)[pci_bar];
+
        dws->bus_num = 0;
        dws->num_cs = 4;
        dws->irq = pdev->irq;