[PATCH 5.13 609/800] serial: 8250_omap: fix a timeout loop condition
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:51:12
Also in:
lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Linus Torvalds, Jiri Slaby
From: Dan Carpenter <redacted>
[ Upstream commit d7e325aaa8c3593b5a572b583ecad79e95f32e7f ]
This loop ends on -1 so the error message will never be printed.
Fixes: 4bcf59a5dea0 ("serial: 8250: 8250_omap: Account for data in flight during DMA teardown")
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Dan Carpenter <redacted>
Link: https://lore.kernel.org/r/YIpd+kOpXKMpEXPf@mwanda (local)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/8250/8250_omap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 8ac11eaeca51..c06631ced414 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c@@ -813,7 +813,7 @@ static void __dma_rx_do_complete(struct uart_8250_port *p) poll_count--) cpu_relax(); - if (!poll_count) + if (poll_count == -1) dev_err(p->port.dev, "teardown incomplete\n"); } }
--
2.30.2