]> git.baikalelectronics.ru Git - kernel.git/commit
media: drxk_hard: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
authorPeter Rosin <peda@axentia.se>
Wed, 20 Jun 2018 05:17:58 +0000 (07:17 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Thu, 12 Jul 2018 22:09:21 +0000 (00:09 +0200)
commit14c84de438797544396b67cd3a110531df5ea1ab
tree97200aacc3c9a6809fc15dafe5b469d48eda2730
parentaeb26a845a0bcff5a4ca6145870d2cf8a8d1b962
media: drxk_hard: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)

Locking the root adapter for __i2c_transfer will deadlock if the
device sits behind a mux-locked I2C mux. Switch to the finer-grained
i2c_lock_bus with the I2C_LOCK_SEGMENT flag. If the device does not
sit behind a mux-locked mux, the two locking variants are equivalent.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/media/dvb-frontends/drxk_hard.c