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input: kbd_matrix: fail gracefully if changing an undefined key mask

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Add a check to input_kbd_matrix_actual_key_mask_set() to return an error
if trying to change a key mask but the device does not define a keymask
in the first place.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
This commit is contained in:
Fabio Baltieri 2024-01-04 11:42:58 +00:00 committed by Fabio Baltieri
parent 603c3af895
commit 2a99432695
1 changed files with 5 additions and 0 deletions
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5
drivers/input/input_kbd_matrix.c
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@ -334,6 +334,11 @@ int input_kbd_matrix_actual_key_mask_set(const struct device *dev,
return -EINVAL; return -EINVAL;
} }
if (cfg->actual_key_mask == NULL) {
LOG_WRN("actual-key-mask not defined for %s", dev->name);
return -EINVAL;
}
WRITE_BIT(cfg->actual_key_mask[col], row, enabled); WRITE_BIT(cfg->actual_key_mask[col], row, enabled);
return 0; return 0;