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libfile: open_and_lseek: don't imply O_RDONLY
There are several users that pass O_RDWR or O_WRONLY in mode to
open_and_lseek() and use the resulting file descriptor for writing. This
is no real issue becauce O_RDONLY is 0 and so can be dropped without
any side effects.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
WIP_next-LS master next stable/v2018.09 stable/v2018.12 v2020.07.0 v2020.06.0 v2020.05.0 v2020.04.0 v2020.03.0 v2020.02.0 v2020.01.0 v2019.12.0 v2019.11.0 v2019.10.0 v2019.09.0 v2019.08.1 v2019.08.0 v2019.07.0 v2019.06.1 v2019.06.0 v2019.05.0 v2019.04.0 v2019.03.0 v2019.02.0 v2019.01.0 v2018.12.0 v2018.11.0 v2018.10.0 v2018.09.1 v2018.09.0
1 parent 1df07fb commit cde598f22ea3460d411fb9a1e5ec4d24bf3882d9
@Uwe Kleine-König Uwe Kleine-König authored on 9 Aug 2018
Sascha Hauer committed on 10 Aug 2018
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lib/libfile.c