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mmc: wmt-sdmmc: Fix NULL pointer dereference 

'of_id' is dereferenced before NULL pointer check. Move it to
after the check.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Sachin Kamat 2014-02-25 15:18:20 +05:30 committed by Chris Ball
parent c4c7fb19bb
commit 43aaa50f17
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/host/wmt-sdmmc.c
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@ -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;
@ -766,6 +766,8 @@ static int wmt_mci_probe(struct platform_device *pdev)
return -EFAULT;
}
wmt_caps = of_id->data;
if (!np) {
dev_err(&pdev->dev, "Missing SDMMC description in devicetree\n");
return -EFAULT;