Commit 978336d4 authored by Wolfram Sang's avatar Wolfram Sang Committed by Wolfram Sang
Browse files

i2c: dev: mark RDWR buffers as DMA_SAFE 



Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent e94bc5d1

drivers/i2c/i2c-dev.c

+2 −0
Original line number Diff line number Diff line
@@ -264,6 +264,8 @@ static noinline int i2cdev_ioctl_rdwr(struct i2c_client *client, 
			res = PTR_ERR(msgs[i].buf);

			break;

		}

		/* memdup_user allocates with GFP_KERNEL, so DMA is ok */

		msgs[i].flags |= I2C_M_DMA_SAFE;



		/*

		 * If the message length is received from the slave (similar