From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/drivers/firmware/google/gsmi.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/drivers/firmware/google/gsmi.c b/kernel/drivers/firmware/google/gsmi.c
index c1cd5ca..407cac7 100644
--- a/kernel/drivers/firmware/google/gsmi.c
+++ b/kernel/drivers/firmware/google/gsmi.c
@@ -360,9 +360,10 @@
 		memcpy(data, gsmi_dev.data_buf->start, *data_size);
 
 		/* All variables are have the following attributes */
-		*attr = EFI_VARIABLE_NON_VOLATILE |
-			EFI_VARIABLE_BOOTSERVICE_ACCESS |
-			EFI_VARIABLE_RUNTIME_ACCESS;
+		if (attr)
+			*attr = EFI_VARIABLE_NON_VOLATILE |
+				EFI_VARIABLE_BOOTSERVICE_ACCESS |
+				EFI_VARIABLE_RUNTIME_ACCESS;
 	}
 
 	spin_unlock_irqrestore(&gsmi_dev.lock, flags);

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