diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2019-06-24 14:35:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-03 19:31:30 +0200 |
| commit | 775b7ffd7d6d5db320d99b0a485c51e04dfcf9f1 (patch) | |
| tree | 91670d866a6c7e877d97c5a08df774f005b901f1 /drivers/hwmon | |
| parent | 8493eab02608b0e82f67b892aa72882e510c31d0 (diff) | |
serial: sh-sci: Terminate TX DMA during buffer flushing
While the .flush_buffer() callback clears sci_port.tx_dma_len since
commit 1cf4a7efdc71cab8 ("serial: sh-sci: Fix race condition causing
garbage during shutdown"), it does not terminate a transmit DMA
operation that may be in progress.
Fix this by terminating any pending DMA operations, and resetting the
corresponding cookie.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Link: https://lore.kernel.org/r/20190624123540.20629-3-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwmon')
0 files changed, 0 insertions, 0 deletions