修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/arch/x86/kernel/pmem.c
..
..
@@ -27,6 +27,11 @@
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 	 * simply here to trigger the module to load on demand.
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 	 */
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 	pdev = platform_device_alloc("e820_pmem", -1);
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-	return platform_device_add(pdev);
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+
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+	rc = platform_device_add(pdev);
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+	if (rc)
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+		platform_device_put(pdev);
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+
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+	return rc;
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 }
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 device_initcall(register_e820_pmem);