diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2026-09-02 00:21:48 -0600 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-10-05 15:44:12 +0200 |
| commit | 5b4c561554b2f802a4e3db539ba2c586b72b7721 (patch) | |
| tree | 86a8ac4612dcee9698eaea17bf7e58869fa3be86 /tools/lib/python | |
| parent | 268f9159ebf38a7ed134e5008e705d8ff99e1c20 (diff) | |
dmaengine: switchtec-dma: disable channels before freeing on registration failure
When switchtec_dma_create() fails after channels have been added to
dma_dev->channels (either from switchtec_dma_chans_enumerate()'s own
error path, or from dma_async_device_register() failing), the channel
status IRQ is still live while the channels are released and freed,
so it can fire mid-teardown against channels that are only partially
torn down.
Add switchtec_dma_chans_disable(), which frees the channel status IRQ
before releasing and freeing channels in both error paths.
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://lore.kernel.org/dmaengine/20260717223431.625EE1F000E9@smtp.kernel.org
Link: https://lore.kernel.org/dmaengine/20260721162822.05CDD1F000E9@smtp.kernel.org
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://patch.msgid.link/20260902062153.31048-7-logang@deltatee.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions