修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-ismt.c
..
..
@@ -507,6 +507,9 @@
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 		if (read_write == I2C_SMBUS_WRITE) {
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 			/* Block Write */
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 			dev_dbg(dev, "I2C_SMBUS_BLOCK_DATA:  WRITE\n");
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+			if (data->block[0] < 1 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
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+				return -EINVAL;
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+
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 			dma_size = data->block[0] + 1;
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 			dma_direction = DMA_TO_DEVICE;
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 			desc->wr_len_cmd = dma_size;