spi: orion: fix incorrect handling of cell-index DT property

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / spi / spi-orion.c

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 66a5f82cf138d86b4fa84d5235e1086022ca6b08..183aa80c90176f86a860756237205e685e661598 100644 (file)
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -403,8 +403,6 @@ static int orion_spi_probe(struct platform_device *pdev)
        struct resource *r;
        unsigned long tclk_hz;
        int status = 0;
-       const u32 *iprop;
-       int size;
 
        master = spi_alloc_master(&pdev->dev, sizeof *spi);
        if (master == NULL) {
@@ -415,10 +413,10 @@ static int orion_spi_probe(struct platform_device *pdev)
        if (pdev->id != -1)
                master->bus_num = pdev->id;
        if (pdev->dev.of_node) {
-               iprop = of_get_property(pdev->dev.of_node, "cell-index",
-                                       &size);
-               if (iprop && size == sizeof(*iprop))
-                       master->bus_num = *iprop;
+               u32 cell_index;
+               if (!of_property_read_u32(pdev->dev.of_node, "cell-index",
+                                         &cell_index))
+                       master->bus_num = cell_index;
        }
 
        /* we support only mode 0, and no options */