mmc: dw_mmc: Use device_property_string_array_count()

Use device_property_string_array_count() to get number of strings
in a string array property.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220202182450.54925-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 99b201921954b1f9ac6c5d7f2694e06777343ec0..3420a7ad60988aecf01715342a29aabdb20e1f41 100644 (file)
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -3057,8 +3057,7 @@ static void dw_mci_init_dma(struct dw_mci *host)
                dev_info(host->dev, "Using internal DMA controller.\n");
        } else {
                /* TRANS_MODE_EDMAC: check dma bindings again */
-               if ((device_property_read_string_array(dev, "dma-names",
-                                                      NULL, 0) < 0) ||
+               if ((device_property_string_array_count(dev, "dma-names") < 0) ||
                    !device_property_present(dev, "dmas")) {
                        goto no_dma;
                }