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| author |   Luiz Sampaio <sampaio.ime@gmail.com> | 2021-11-09 19:07:32 -0300 |
|---|---|---|
| committer |   Miguel Ojeda <ojeda@kernel.org> | 2021-11-24 11:46:52 +0100 |
| commit | 4daa9ff89ef27be43c15995412d6aee393a78200 (patch) | |
| tree | 6be42ed28dfed32cd06e1bfcf334246827a8bd3a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | auxdisplay: charlcd: fixing coding style issue (diff) | |
| download | wireguard-linux-4daa9ff89ef27be43c15995412d6aee393a78200.tar.xz wireguard-linux-4daa9ff89ef27be43c15995412d6aee393a78200.zip | |
auxdisplay: charlcd: checking for pointer reference before dereferencing
Check if the pointer lcd->ops->init_display exists before dereferencing it.
If a driver called charlcd_init() without defining the ops, this would
return segmentation fault, as happened to me when implementing a charlcd
driver. Checking the pointer before dereferencing protects from
segmentation fault.
Signed-off-by: Luiz Sampaio <sampaio.ime@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions