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usb: musb: tusb6010: check return value after calling platform_get_resource()
It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20210915034925.2399823-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1103,6 +1103,11 @@ static int tusb_musb_init(struct musb *musb)
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/* dma address for async dma */
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mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!mem) {
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pr_debug("no async dma resource?\n");
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ret = -ENODEV;
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goto done;
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}
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musb->async = mem->start;
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/* dma address for sync dma */
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