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author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2015-03-18 13:27:28 +0300 |
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committer | Sasha Levin <sasha.levin@oracle.com> | 2015-04-17 03:13:13 +0300 |
commit | ea4e289c2847a4fbcb140295e3fd60ec5b5c8052 (patch) | |
tree | 17553de70f54aba3e2fe58b86b6fe9499a46d5b9 /fs/hfsplus | |
parent | 7cc582d4ae5dd15351fdb9cd7e0e34462b09c2f9 (diff) | |
download | linux-ea4e289c2847a4fbcb140295e3fd60ec5b5c8052.tar.xz |
spi: trigger trace event for message-done before mesg->complete
[ Upstream commit 391949b6f02121371e3d7d9082c6d17fd9853034 ]
With spidev the mesg->complete callback points to spidev_complete.
Calling this unblocks spidev_sync and so spidev_sync_write finishes. As
the struct spi_message just read is a local variable in
spidev_sync_write and recording the trace event accesses this message
the recording is better done first. The same can happen for
spidev_sync_read.
This fixes an oops observed on a 3.14-rt system with spidev activity
after
echo 1 > /sys/kernel/debug/tracing/events/spi/enable
.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'fs/hfsplus')
0 files changed, 0 insertions, 0 deletions