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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2015-05-05 08:26:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-10 19:10:07 +0200 |
| commit | 59cfc45f17d6d1dda2990e6f5a94df24a18330b8 (patch) | |
| tree | 37c05b196a9f91f8c28a9c1a4e585ec5973650e4 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 24ee4df12216a0b1c9a0c22f83fbf366eb216d33 (diff) | |
serial: 8250: Do nothing if nr_uarts=0
When nr_uarts was set to 0 (via config or 8250_core.nr_uarts), we crash
early on x86 because serial8250_isa_init_ports dereferences base_ops
which remains NULL. In fact, there is nothing to do for all the callers
of serial8250_isa_init_ports if there are no uarts.
Based on suggestions by Peter Hurley.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions