From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Razvan Stefanescu <razvan.stefanescu@microchip.com>
Subject: [PATCH 5.3 15/21] tty/serial: atmel: reschedule TX after RX was started
Date: Fri, 20 Sep 2019 00:03:16 +0200 [thread overview]
Message-ID: <20190919214708.783116461@linuxfoundation.org> (raw)
In-Reply-To: <20190919214657.842130855@linuxfoundation.org>
From: Razvan Stefanescu <razvan.stefanescu@microchip.com>
commit d2ace81bf902a9f11d52e59e5d232d2255a0e353 upstream.
When half-duplex RS485 communication is used, after RX is started, TX
tasklet still needs to be scheduled tasklet. This avoids console freezing
when more data is to be transmitted, if the serial communication is not
closed.
Fixes: 69646d7a3689 ("tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped")
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190813074025.16218-1-razvan.stefanescu@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/atmel_serial.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1400,7 +1400,6 @@ atmel_handle_transmit(struct uart_port *
atmel_port->hd_start_rx = false;
atmel_start_rx(port);
- return;
}
atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx);
next prev parent reply other threads:[~2019-09-19 22:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-19 22:03 [PATCH 5.3 00/21] 5.3.1-stable review Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 01/21] USB: usbcore: Fix slab-out-of-bounds bug during device reset Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 02/21] media: tm6000: double free if usb disconnect while streaming Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 03/21] phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 04/21] ip6_gre: fix a dst leak in ip6erspan_tunnel_xmit Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 05/21] net/sched: fix race between deactivation and dequeue for NOLOCK qdisc Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 06/21] net_sched: let qdisc_put() accept NULL pointer Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 07/21] udp: correct reuseport selection with connected sockets Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 08/21] xen-netfront: do not assume sk_buff_head list is empty in error handling Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 09/21] net: dsa: Fix load order between DSA drivers and taggers Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 10/21] net: stmmac: Hold rtnl lock in suspend/resume callbacks Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 11/21] KVM: coalesced_mmio: add bounds checking Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 12/21] Documentation: sphinx: Add missing comma to list of strings Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 13/21] firmware: google: check if size is valid when decoding VPD data Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 14/21] serial: sprd: correct the wrong sequence of arguments Greg Kroah-Hartman
2019-09-19 22:03 ` Greg Kroah-Hartman [this message]
2019-09-19 22:03 ` [PATCH 5.3 16/21] nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 17/21] Revert "arm64: Remove unnecessary ISBs from set_{pte,pmd,pud}" Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 18/21] ovl: fix regression caused by overlapping layers detection Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 19/21] phy: qcom-qmp: Correct ready status, again Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 20/21] floppy: fix usercopy direction Greg Kroah-Hartman
2019-09-19 22:03 ` [PATCH 5.3 21/21] media: technisat-usb2: break out of loop at end of buffer Greg Kroah-Hartman
2019-09-20 13:45 ` [PATCH 5.3 00/21] 5.3.1-stable review Guenter Roeck
2019-09-20 13:54 ` Jon Hunter
2019-09-20 14:24 ` Greg Kroah-Hartman
2019-09-20 16:01 ` Jon Hunter
2019-09-22 8:13 ` Greg Kroah-Hartman
2019-09-20 14:41 ` Naresh Kamboju
2019-09-21 5:06 ` Greg Kroah-Hartman
2019-09-20 21:17 ` shuah
2019-09-21 5:04 ` Greg Kroah-Hartman
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