staging: axis-fifo: flush RX FIFO on read errors

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commit 82a051e255 upstream.

Flush stale data from the RX FIFO in case of errors, to avoid reading
old data when new packets arrive.

Commit c6e8d85faf ("staging: axis-fifo: Remove hardware resets for
user errors") removed full FIFO resets from the read error paths, which
fixed potential TX data losses, but introduced this RX issue.

Fixes: c6e8d85faf ("staging: axis-fifo: Remove hardware resets for user errors")
Cc: stable@vger.kernel.org
Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
Link: https://lore.kernel.org/r/20250912101322.1282507-2-ovidiu.panait.oss@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ovidiu Panait 2025-09-12 13:13:22 +03:00 • committed by Greg Kroah-Hartman

parent 8247c59cf5

commit 226082eb17

1 changed files with 11 additions and 7 deletions

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drivers/staging/axis-fifo/axis-fifo.c

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