diff options
| author | Stefan Roese <sr@denx.de> | 2014-01-31 13:44:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-16 06:59:34 -0800 |
| commit | 2937d5ac11c421a02f276295f388994027bbe607 (patch) | |
| tree | f09d92cf639952150866441235de698edbce10b0 /include/linux/dynamic_queue_limits.h | |
| parent | ceaefcdf2a9f24835691d58d45c5cc50d596a7d0 (diff) | |
spi: fsl: Fix problem with multi message transfers
commit 4302a59629f7a0bd70fd1605d2b558597517372a upstream.
When used via spidev with more than one messages to tranfer via
SPI_IOC_MESSAGE the current implementation would return with
-EINVAL, since bits_per_word and speed_hz are set in all
transfer structs. And in the 2nd loop status will stay at
-EINVAL as its not overwritten again via fsl_spi_setup_transfer().
This patch changes this behavious by first checking if one of
the messages uses different settings. If this is the case
the function will return with -EINVAL. If not, the messages
are transferred correctly.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: Esben Haabendal <esbenhaabendal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dynamic_queue_limits.h')
0 files changed, 0 insertions, 0 deletions