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authorMark Brown <broonie@kernel.org>2020-01-23 12:37:15 +0000
committerMark Brown <broonie@kernel.org>2020-01-23 12:37:15 +0000
commit7265e8fc51081f08728cc7528fd4640a81ec6768 (patch)
tree6e66c242e65229b1eb74fd2dc139a614579c05cc /drivers/spi/spi-dw.c
parentdef9d2780727cec3313ed3522d0123158d87224d (diff)
parent29d7e05c5f75fc2ebf3608743b6809aa0ff56800 (diff)
downloadlinux-7265e8fc51081f08728cc7528fd4640a81ec6768.tar.bz2
Merge branch 'spi-5.5' into spi-linus
Diffstat (limited to 'drivers/spi/spi-dw.c')
-rw-r--r--drivers/spi/spi-dw.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 5a25da377119..25e897e3af22 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -297,6 +297,9 @@ static int dw_spi_transfer_one(struct spi_controller *master,
dws->len = transfer->len;
spin_unlock_irqrestore(&dws->buf_lock, flags);
+ /* Ensure dw->rx and dw->rx_end are visible */
+ smp_mb();
+
spi_enable_chip(dws, 0);
/* Handle per transfer options for bpw and speed */