46   int dfd, fd, len, on;  in acpi_callback()  local
55   if (0 <= (dfd = open((TT.cpath=dirtree_path(tree, NULL)), O_RDONLY))) {  in acpi_callback()
56     if ((fd = openat(dfd, "type", O_RDONLY)) < 0) goto done;  in acpi_callback()
65         if ((cap = read_int_at(dfd, "capacity")) < 0) {  in acpi_callback()
66           if ((max = read_int_at(dfd, "charge_full")) > 0)  in acpi_callback()
67             curr = read_int_at(dfd, "charge_now");  in acpi_callback()
68           else if ((max = read_int_at(dfd, "energy_full")) > 0)  in acpi_callback()
69             curr = read_int_at(dfd, "energy_now");  in acpi_callback()
75       if ((on = read_int_at(dfd, "online")) >= 0)  in acpi_callback()
79     close(dfd);  in acpi_callback()
87   int dfd, temp;  in temp_callback()  local
94   if (0 <= (dfd = open((TT.cpath=dirtree_path(tree, NULL)), O_RDONLY))) {  in temp_callback()
95     if ((0 < (temp = read_int_at(dfd, "temp"))) || !errno) {  in temp_callback()
101     close(dfd);  in temp_callback()
110   int dfd=5, cur, max;  in cool_callback()  local
119   if (0 <= (dfd = open((TT.cpath=dirtree_path(tree, &dfd)), O_RDONLY))) {  in cool_callback()
123       cur=read_int_at(dfd, "cur_state");  in cool_callback()
124       max=read_int_at(dfd, "max_state");  in cool_callback()
129     close(dfd);  in cool_callback()