From: Antonio Borneo antonio.borneo@st.com
[ Upstream commit 135dd873d3c76d812ae64c668adef3f2c59ed27f ]
The caller of stm32_spi_transfer_one(), spi_transfer_one_message(), is waiting for us to call spi_finalize_current_transfer() and will eventually schedule a new transfer, if available. We should guarantee that the spi controller is really available before calling spi_finalize_current_transfer().
Move the call to spi_finalize_current_transfer() _after_ the call to stm32_spi_disable().
Signed-off-by: Antonio Borneo antonio.borneo@st.com Signed-off-by: Alain Volmat alain.volmat@st.com Link: https://lore.kernel.org/r/1597043558-29668-2-git-send-email-alain.volmat@st.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-stm32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index ef3be03574e80..04ee21defbc0b 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -969,8 +969,8 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id) spin_unlock_irqrestore(&spi->lock, flags);
if (end) { - spi_finalize_current_transfer(master); stm32h7_spi_disable(spi); + spi_finalize_current_transfer(master); }
return IRQ_HANDLED;