i2c: dev: mark RDWR buffers as DMA_SAFE
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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@ -264,6 +264,8 @@ static noinline int i2cdev_ioctl_rdwr(struct i2c_client *client,
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res = PTR_ERR(msgs[i].buf);
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break;
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}
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/* memdup_user allocates with GFP_KERNEL, so DMA is ok */
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msgs[i].flags |= I2C_M_DMA_SAFE;
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/*
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* If the message length is received from the slave (similar
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