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/drivers/hid/intel-ish-hid/ishtp/dma-if.c
..
..
@@ -104,6 +104,11 @@
104
104
 	int required_slots = (size / DMA_SLOT_SIZE)
105
105
 		+ 1 * (size % DMA_SLOT_SIZE != 0);
106
106
 
107
+	if (!dev->ishtp_dma_tx_map) {
108
+		dev_err(dev->devc, "Fail to allocate Tx map\n");
109
+		return NULL;
110
+	}
111
+
107
112
 	spin_lock_irqsave(&dev->ishtp_dma_tx_lock, flags);
108
113
 	for (i = 0; i <= (dev->ishtp_dma_num_slots - required_slots); i++) {
109
114
 		free = 1;
..
..
@@ -150,6 +155,11 @@
150
155
 		return;
151
156
 	}
152
157
 
158
+	if (!dev->ishtp_dma_tx_map) {
159
+		dev_err(dev->devc, "Fail to allocate Tx map\n");
160
+		return;
161
+	}
162
+
153
163
 	i = (msg_addr - dev->ishtp_host_dma_tx_buf) / DMA_SLOT_SIZE;
154
164
 	spin_lock_irqsave(&dev->ishtp_dma_tx_lock, flags);
155
165
 	for (j = 0; j < acked_slots; j++) {