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| author | Fugang Duan <fugang.duan@nxp.com> | 2021-08-17 18:02:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-18 16:05:27 +0200 |
| commit | 88c1d2478ec8a420cf60a3c25503e37b34fea5aa (patch) | |
| tree | 4560aea876860da77a1c43c14bafe8df0a77ba54 /drivers/tty/moxa.c | |
| parent | 1143637f00cd8205c43bad702b2aff57c01913f8 (diff) | |
| download | linux-stable-88c1d2478ec8a420cf60a3c25503e37b34fea5aa.tar.gz linux-stable-88c1d2478ec8a420cf60a3c25503e37b34fea5aa.tar.bz2 linux-stable-88c1d2478ec8a420cf60a3c25503e37b34fea5aa.zip | |
tty: serial: fsl_lpuart: check dma_tx_in_progress in tx dma callback
There have a corner case that tx DMA .callback() is coming after
.flush_buffer(), then .callback() should check dma_tx_in_progress
flag and return in directly.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20210817100203.21300-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/moxa.c')
0 files changed, 0 insertions, 0 deletions