linux/drivers/tty
Peng Fan 487ee861de tty: serial: fsl_lpuart: use the sg count from dma_map_sg
The dmaengine_prep_slave_sg needs to use sg count returned
by dma_map_sg, not use sport->dma_tx_nents, because the return
value of dma_map_sg is not always same with "nents".

When enabling iommu for lpuart + edma, iommu framework may concatenate
two sgs into one.

Fixes: 6250cc30c4 ("tty: serial: fsl_lpuart: Use scatter/gather DMA for Tx")
Cc: <stable@vger.kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1572932977-17866-1-git-send-email-peng.fan@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-05 18:18:01 +01:00
..
hvc hvc: dcc: Add earlycon support 2019-10-11 08:38:07 +02:00
ipwireless
serdev serdev: Add ACPI devices by ResourceSource field 2019-10-10 14:29:44 +02:00
serial tty: serial: fsl_lpuart: use the sg count from dma_map_sg 2019-11-05 18:18:01 +01:00
vt vt: Grab console_lock around con_is_bound in show_bind 2019-07-25 13:47:35 +02:00
amiserial.c
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c tty/isicom: remove redundant assignment to variable word_count 2019-09-04 12:43:44 +02:00
Kconfig docs: serial: move it to the driver-api 2019-07-15 11:03:03 -03:00
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c Revert "tty:n_gsm.c: destroy port by tty_port_destroy()" 2019-11-04 17:48:16 +01:00
n_hdlc.c tty: n_hdlc: fix build on SPARC 2019-10-04 15:14:20 +02:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c tty: nozomi: Use dev_get_drvdata 2019-09-04 12:43:44 +02:00
pty.c
rocket_int.h
rocket.c tty: rocket: reduce stack usage 2019-11-04 17:42:28 +01:00
rocket.h
synclink_gt.c
synclink.c
synclinkmp.c
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c drivers: Introduce device lookup variants by device type 2019-07-30 13:07:42 +02:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c tty_ldisc: simplify tty_ldisc_autoload initialization 2019-10-04 15:11:25 +02:00
tty_ldsem.c tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop 2019-07-25 15:39:24 +02:00
tty_mutex.c
tty_port.c
ttynull.c
vcc.c