i2c: smbus: kill memory leak on emulated and failed DMA SMBus xfers
authorPeter Rosin <peda@axentia.se>
Wed, 20 Jun 2018 09:43:23 +0000 (11:43 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Fri, 29 Jun 2018 06:19:52 +0000 (08:19 +0200)
commit9aa613674f89d01248ae2e4afe691b515ff8fbb6
treef38b5356e2e3f24673760f47bcea33257c588d48
parent2173ed0adc7f0473e6b6ad636d8684a0d82da5e9
i2c: smbus: kill memory leak on emulated and failed DMA SMBus xfers

If DMA safe memory was allocated, but the subsequent I2C transfer
fails the memory is leaked. Plug this leak.

Fixes: 8a77821e74d6 ("i2c: smbus: use DMA safe buffers for emulated SMBus transactions")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
drivers/i2c/i2c-core-smbus.c