Ensure having NULL checking for of_id before dereference of_id->data.

Signed-off-by: Axel Lin <[email protected]>
---
 drivers/mmc/host/wmt-sdmmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 57858ef..5501c9f 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -757,7 +757,7 @@ static int wmt_mci_probe(struct platform_device *pdev)
        struct device_node *np = pdev->dev.of_node;
        const struct of_device_id *of_id =
                of_match_device(wmt_mci_dt_ids, &pdev->dev);
-       const struct wmt_mci_caps *wmt_caps = of_id->data;
+       const struct wmt_mci_caps *wmt_caps;
        int ret;
        int regular_irq, dma_irq;
 
@@ -771,6 +771,7 @@ static int wmt_mci_probe(struct platform_device *pdev)
                return -EFAULT;
        }
 
+       wmt_caps = of_id->data;
        regular_irq = irq_of_parse_and_map(np, 0);
        dma_irq = irq_of_parse_and_map(np, 1);
 
-- 
1.8.1.2



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