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| author | Yoshihiro Shimoda <[email protected]> | 2021-06-10 11:08:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-06-15 12:01:52 +0000 |
| commit | 08a84410a04f05c7c1b8e833f552416d8eb9f6fe (patch) | |
| tree | 7ede70360430c7736c61c61f56220a7d121b28ee /drivers/usb/class/cdc-acm.c | |
| parent | Merge tag 'v5.13-rc6' into tty-next (diff) | |
| download | kernel-08a84410a04f05c7c1b8e833f552416d8eb9f6fe.tar.gz kernel-08a84410a04f05c7c1b8e833f552416d8eb9f6fe.zip | |
serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
Stop dmaengine transfer in sci_stop_tx(). Otherwise, the following
message is possible output when system enters suspend and while
transferring data, because clearing TIE bit in SCSCR is not able to
stop any dmaengine transfer.
sh-sci e6550000.serial: ttySC1: Unable to drain transmitter
Note that this driver has already used some #ifdef in the .c file
so that this patch also uses #ifdef to fix the issue. Otherwise,
build errors happens if the CONFIG_SERIAL_SH_SCI_DMA is disabled.
Fixes: 73a19e4c0301 ("serial: sh-sci: Add DMA support.")
Cc: <[email protected]> # v4.9+
Signed-off-by: Yoshihiro Shimoda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
0 files changed, 0 insertions, 0 deletions