3.16.75-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Yingjoe Chen yingjoe.chen@mediatek.com
commit a0692f0eef91354b62c2b4c94954536536be5425 upstream.
If I2C_M_RECV_LEN check failed, msgs[i].buf allocated by memdup_user will not be freed. Pump index up so it will be freed.
Fixes: 838bfa6049fb ("i2c-dev: Add support for I2C_M_RECV_LEN") Signed-off-by: Yingjoe Chen yingjoe.chen@mediatek.com Signed-off-by: Wolfram Sang wsa@the-dreams.de Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/i2c/i2c-dev.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -300,6 +300,7 @@ static noinline int i2cdev_ioctl_rdrw(st rdwr_pa[i].buf[0] < 1 || rdwr_pa[i].len < rdwr_pa[i].buf[0] + I2C_SMBUS_BLOCK_MAX) { + i++; res = -EINVAL; break; }