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| author | Luiz Sampaio <[email protected]> | 2021-11-09 22:07:32 +0000 |
|---|---|---|
| committer | Miguel Ojeda <[email protected]> | 2021-11-24 10:46:52 +0000 |
| commit | 4daa9ff89ef27be43c15995412d6aee393a78200 (patch) | |
| tree | 6be42ed28dfed32cd06e1bfcf334246827a8bd3a /tools/perf/scripts/python/libxed.py | |
| parent | auxdisplay: charlcd: fixing coding style issue (diff) | |
| download | kernel-4daa9ff89ef27be43c15995412d6aee393a78200.tar.gz kernel-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 <[email protected]>
Signed-off-by: Miguel Ojeda <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/libxed.py')
0 files changed, 0 insertions, 0 deletions