thunderbolt: stream: Fix possible short reads/writes

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Since copy_page_{to|from}_iter() advances the iterator and makes
iov_iter_count() reflect the remaining bytes, subtracting nbytes from it
makes it count it twice resulting in possible short reads/writes on a
read/write spanning multiple frames.

Fix this by using iov_iter_count() directly.

Fixes: 6db21d817b ("thunderbolt: Add support for USB4STREAM")
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

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Mika Westerberg 2026-07-28 13:27:28 +03:00

parent 039701ea3d

commit af73a21a8e

1 changed files with 4 additions and 4 deletions

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drivers/thunderbolt/stream.c

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