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| author | Vincent Whitchurch <vincent.whitchurch@axis.com> | 2022-08-18 14:50:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-30 15:31:53 +0300 |
| commit | 56c14fb4086b2de6921dd70251b19b364b909ea1 (patch) | |
| tree | 796ed82646c2af26914f7027782cb3e2b02b0cdc /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 846651eca073e2e02e37490a4a52752415d84781 (diff) | |
| download | linux-56c14fb4086b2de6921dd70251b19b364b909ea1.tar.xz | |
tty: Fix lookahead_buf crash with serdev
Do not follow a NULL pointer if the tty_port_client_operations does not
implement the ->lookahead_buf() callback, which is the case with
serdev's ttyport.
Reported-by: Hans de Goede <hdegoede@redhat.com>
Fixes: 6bb6fa6908ebd3 ("tty: Implement lookahead to process XON/XOFF timely")
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20220818115026.2237893-1-vincent.whitchurch@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions