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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> | 2021-03-25 09:04:10 +0100 |
| commit | 0e44f1e18398efbc726103a0d49abf8c8894dbe4 (patch) | |
| tree | 1f48d24a55ad05903b10fe325ac2e12e56cf952f /kernel/module.c | |
| parent | 5f8659adf7a2889acf9d105d579efa6ed4033993 (diff) | |
serial: stm32: fix DMA initialization error handling
[ Upstream commit e7997f7ff7f8154d477f6f976698d868a2ac3934 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/module.c')
0 files changed, 0 insertions, 0 deletions