ude_rules.c: fix possible NULL pointer dereference in get_key()
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@ -878,7 +878,7 @@ static int get_key(struct udev *udev, char **line, char **key, enum operation_ty
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char *temp;
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linepos = *line;
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if (linepos == NULL && linepos[0] == '\0')
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if (linepos == NULL || linepos[0] == '\0')
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return -1;
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/* skip whitespace */
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