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| author |   Erwan Le Ray <erwan.leray@foss.st.com> | 2021-01-06 17:21:56 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-07 16:19:28 +0100 |
| commit | e7997f7ff7f8154d477f6f976698d868a2ac3934 (patch) | |
| tree | ea8d5a57942128c6e96b470f7b40ede61ab80b7e /drivers/tty/serial/efm32-uart.c | |
| parent | tty: drop termiox user definitions (diff) | |
| download | wireguard-linux-e7997f7ff7f8154d477f6f976698d868a2ac3934.tar.xz wireguard-linux-e7997f7ff7f8154d477f6f976698d868a2ac3934.zip | |
serial: stm32: fix DMA initialization error handling
DMA initialization error handling is not properly implemented in the
driver.
Fix DMA initialization error handling by:
- moving TX DMA descriptor request error handling in a new dedicated
fallback_err label
- adding error handling to TX DMA descriptor submission
- adding error handling to RX DMA descriptor submission
This patch depends on '24832ca3ee85 ("tty: serial: stm32-usart: Remove set
but unused 'cookie' variables")' which unfortunately doesn't include a
"Fixes" tag.
Fixes: 3489187204eb ("serial: stm32: adding dma support")
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210106162203.28854-2-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/efm32-uart.c')
0 files changed, 0 insertions, 0 deletions