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![]() 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> |
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.. | ||
arm-charlcd.c | ||
cfag12864b.c | ||
cfag12864bfb.c | ||
charlcd.c | ||
charlcd.h | ||
hd44780.c | ||
hd44780_common.c | ||
hd44780_common.h | ||
ht16k33.c | ||
img-ascii-lcd.c | ||
Kconfig | ||
ks0108.c | ||
lcd2s.c | ||
line-display.c | ||
line-display.h | ||
Makefile | ||
panel.c |