media: rc: ttusbir: respect DMA coherency rules

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[ Upstream commit 50acaad3d2 ]

Buffers must not share a cache line with other data structures.
Allocate separately.

Fixes: 0938069fa0 ("[media] rc: Add support for the TechnoTrend USB IR Receiver")
Cc: stable@vger.kernel.org
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
[ kept kzalloc(sizeof(*tt), GFP_KERNEL) instead of kzalloc_obj() ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Oliver Neukum 2026-05-01 13:27:52 -04:00 • committed by Greg Kroah-Hartman

parent 2c38191380

commit 6ed4e39cb6

1 changed files with 9 additions and 4 deletions

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drivers/media/rc/ttusbir.c

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