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TO: "Amjad Ouled-Ameur" <[email protected]>
TO: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
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CC: [email protected]
CC: "Amjad Ouled-Ameur" <[email protected]>
CC: default avatarMichael Kao <[email protected]>
CC: "default avatarHsin-Yi Wang" <[email protected]>

Hi Amjad,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on rafael-pm/thermal]
[also build test WARNING on clk/clk-next soc/for-next linus/master v5.19-rc7 
next-20220721]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    
https://github.com/intel-lab-lkp/linux/commits/Amjad-Ouled-Ameur/thermal-mediatek-Add-support-for-MT8365-SoC/20220721-022321
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 
thermal
:::::: branch date: 27 hours ago
:::::: commit date: 27 hours ago
config: ia64-randconfig-m041-20220718 
(https://download.01.org/0day-ci/archive/20220722/[email protected]/config)
compiler: ia64-linux-gcc (GCC) 12.1.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

smatch warnings:
drivers/thermal/mtk_thermal.c:1223 mtk_thermal_probe() error: uninitialized 
symbol 'tzdev'.

vim +/tzdev +1223 drivers/thermal/mtk_thermal.c

89945047b1666c Henry Yen                 2020-04-30  1098  
a92db1c8089e82 Sascha Hauer              2015-11-30  1099  static int 
mtk_thermal_probe(struct platform_device *pdev)
a92db1c8089e82 Sascha Hauer              2015-11-30  1100  {
bd9403943d7d19 Michael Kao               2019-02-01  1101       int ret, i, 
ctrl_id;
a92db1c8089e82 Sascha Hauer              2015-11-30  1102       struct 
device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node;
a92db1c8089e82 Sascha Hauer              2015-11-30  1103       struct 
mtk_thermal *mt;
a92db1c8089e82 Sascha Hauer              2015-11-30  1104       struct resource 
*res;
a92db1c8089e82 Sascha Hauer              2015-11-30  1105       u64 
auxadc_phys_base, apmixed_phys_base;
1f6b0889d0ea03 Axel Lin                  2016-09-07  1106       struct 
thermal_zone_device *tzdev;
89945047b1666c Henry Yen                 2020-04-30  1107       void __iomem 
*apmixed_base, *auxadc_base;
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1108       struct 
mtk_thermal_zone *tz;
a92db1c8089e82 Sascha Hauer              2015-11-30  1109  
a92db1c8089e82 Sascha Hauer              2015-11-30  1110       mt = 
devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL);
a92db1c8089e82 Sascha Hauer              2015-11-30  1111       if (!mt)
a92db1c8089e82 Sascha Hauer              2015-11-30  1112               return 
-ENOMEM;
a92db1c8089e82 Sascha Hauer              2015-11-30  1113  
9efc58dfa14a20 Ryder Lee                 2018-04-16  1114       mt->conf = 
of_device_get_match_data(&pdev->dev);
b7cf0053738c54 [email protected]  2016-08-18  1115  
a92db1c8089e82 Sascha Hauer              2015-11-30  1116       
mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm");
a92db1c8089e82 Sascha Hauer              2015-11-30  1117       if 
(IS_ERR(mt->clk_peri_therm))
a92db1c8089e82 Sascha Hauer              2015-11-30  1118               return 
PTR_ERR(mt->clk_peri_therm);
a92db1c8089e82 Sascha Hauer              2015-11-30  1119  
a92db1c8089e82 Sascha Hauer              2015-11-30  1120       mt->clk_auxadc 
= devm_clk_get(&pdev->dev, "auxadc");
a92db1c8089e82 Sascha Hauer              2015-11-30  1121       if 
(IS_ERR(mt->clk_auxadc))
a92db1c8089e82 Sascha Hauer              2015-11-30  1122               return 
PTR_ERR(mt->clk_auxadc);
a92db1c8089e82 Sascha Hauer              2015-11-30  1123  
a92db1c8089e82 Sascha Hauer              2015-11-30  1124       res = 
platform_get_resource(pdev, IORESOURCE_MEM, 0);
a92db1c8089e82 Sascha Hauer              2015-11-30  1125       
mt->thermal_base = devm_ioremap_resource(&pdev->dev, res);
a92db1c8089e82 Sascha Hauer              2015-11-30  1126       if 
(IS_ERR(mt->thermal_base))
a92db1c8089e82 Sascha Hauer              2015-11-30  1127               return 
PTR_ERR(mt->thermal_base);
a92db1c8089e82 Sascha Hauer              2015-11-30  1128  
a92db1c8089e82 Sascha Hauer              2015-11-30  1129       ret = 
mtk_thermal_get_calibration_data(&pdev->dev, mt);
a92db1c8089e82 Sascha Hauer              2015-11-30  1130       if (ret)
a92db1c8089e82 Sascha Hauer              2015-11-30  1131               return 
ret;
a92db1c8089e82 Sascha Hauer              2015-11-30  1132  
a92db1c8089e82 Sascha Hauer              2015-11-30  1133       
mutex_init(&mt->lock);
a92db1c8089e82 Sascha Hauer              2015-11-30  1134  
a92db1c8089e82 Sascha Hauer              2015-11-30  1135       mt->dev = 
&pdev->dev;
a92db1c8089e82 Sascha Hauer              2015-11-30  1136  
a92db1c8089e82 Sascha Hauer              2015-11-30  1137       auxadc = 
of_parse_phandle(np, "mediatek,auxadc", 0);
a92db1c8089e82 Sascha Hauer              2015-11-30  1138       if (!auxadc) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1139               
dev_err(&pdev->dev, "missing auxadc node\n");
a92db1c8089e82 Sascha Hauer              2015-11-30  1140               return 
-ENODEV;
a92db1c8089e82 Sascha Hauer              2015-11-30  1141       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1142  
89945047b1666c Henry Yen                 2020-04-30  1143       auxadc_base = 
of_iomap(auxadc, 0);
a92db1c8089e82 Sascha Hauer              2015-11-30  1144       
auxadc_phys_base = of_get_phys_base(auxadc);
a92db1c8089e82 Sascha Hauer              2015-11-30  1145  
a92db1c8089e82 Sascha Hauer              2015-11-30  1146       
of_node_put(auxadc);
a92db1c8089e82 Sascha Hauer              2015-11-30  1147  
a92db1c8089e82 Sascha Hauer              2015-11-30  1148       if 
(auxadc_phys_base == OF_BAD_ADDR) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1149               
dev_err(&pdev->dev, "Can't get auxadc phys address\n");
a92db1c8089e82 Sascha Hauer              2015-11-30  1150               return 
-EINVAL;
a92db1c8089e82 Sascha Hauer              2015-11-30  1151       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1152  
a92db1c8089e82 Sascha Hauer              2015-11-30  1153       apmixedsys = 
of_parse_phandle(np, "mediatek,apmixedsys", 0);
a92db1c8089e82 Sascha Hauer              2015-11-30  1154       if 
(!apmixedsys) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1155               
dev_err(&pdev->dev, "missing apmixedsys node\n");
a92db1c8089e82 Sascha Hauer              2015-11-30  1156               return 
-ENODEV;
a92db1c8089e82 Sascha Hauer              2015-11-30  1157       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1158  
89945047b1666c Henry Yen                 2020-04-30  1159       apmixed_base = 
of_iomap(apmixedsys, 0);
a92db1c8089e82 Sascha Hauer              2015-11-30  1160       
apmixed_phys_base = of_get_phys_base(apmixedsys);
a92db1c8089e82 Sascha Hauer              2015-11-30  1161  
a92db1c8089e82 Sascha Hauer              2015-11-30  1162       
of_node_put(apmixedsys);
a92db1c8089e82 Sascha Hauer              2015-11-30  1163  
a92db1c8089e82 Sascha Hauer              2015-11-30  1164       if 
(apmixed_phys_base == OF_BAD_ADDR) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1165               
dev_err(&pdev->dev, "Can't get auxadc phys address\n");
a92db1c8089e82 Sascha Hauer              2015-11-30  1166               return 
-EINVAL;
a92db1c8089e82 Sascha Hauer              2015-11-30  1167       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1168  
703456ba76e944 Fabien Parent             2020-10-21  1169       ret = 
device_reset_optional(&pdev->dev);
6760f3f74e72d6 Louis Yu                  2017-08-01  1170       if (ret)
6760f3f74e72d6 Louis Yu                  2017-08-01  1171               return 
ret;
6760f3f74e72d6 Louis Yu                  2017-08-01  1172  
a92db1c8089e82 Sascha Hauer              2015-11-30  1173       ret = 
clk_prepare_enable(mt->clk_auxadc);
a92db1c8089e82 Sascha Hauer              2015-11-30  1174       if (ret) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1175               
dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret);
a92db1c8089e82 Sascha Hauer              2015-11-30  1176               return 
ret;
a92db1c8089e82 Sascha Hauer              2015-11-30  1177       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1178  
a92db1c8089e82 Sascha Hauer              2015-11-30  1179       ret = 
clk_prepare_enable(mt->clk_peri_therm);
a92db1c8089e82 Sascha Hauer              2015-11-30  1180       if (ret) {
a92db1c8089e82 Sascha Hauer              2015-11-30  1181               
dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret);
a92db1c8089e82 Sascha Hauer              2015-11-30  1182               goto 
err_disable_clk_auxadc;
a92db1c8089e82 Sascha Hauer              2015-11-30  1183       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1184  
b91b391dd49f5d Markus Schneider-Pargmann 2022-07-20  1185       
mtk_thermal_turn_on_buffer(mt, apmixed_base);
b91b391dd49f5d Markus Schneider-Pargmann 2022-07-20  1186  
89945047b1666c Henry Yen                 2020-04-30  1187       if 
(mt->conf->version == MTK_THERMAL_V2) {
89945047b1666c Henry Yen                 2020-04-30  1188               
mtk_thermal_release_periodic_ts(mt, auxadc_base);
89945047b1666c Henry Yen                 2020-04-30  1189       }
89945047b1666c Henry Yen                 2020-04-30  1190  
bd9403943d7d19 Michael Kao               2019-02-01  1191       for (ctrl_id = 
0; ctrl_id < mt->conf->num_controller ; ctrl_id++)
b7cf0053738c54 [email protected]  2016-08-18  1192               for (i 
= 0; i < mt->conf->num_banks; i++)
eb4fc33eb26807 Eduardo Valentin          2016-02-18  1193                       
mtk_thermal_init_bank(mt, i, apmixed_phys_base,
bd9403943d7d19 Michael Kao               2019-02-01  1194                       
                      auxadc_phys_base, ctrl_id);
a92db1c8089e82 Sascha Hauer              2015-11-30  1195  
a92db1c8089e82 Sascha Hauer              2015-11-30  1196       
platform_set_drvdata(pdev, mt);
a92db1c8089e82 Sascha Hauer              2015-11-30  1197  
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1198       for (i = 0; i < 
mt->conf->num_sensors + 1; i++) {
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1199               tz = 
kmalloc(sizeof(*tz), GFP_KERNEL);
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1200               if (!tz)
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1201                       
return -ENOMEM;
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1202  
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1203               tz->mt 
= mt;
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1204               tz->id 
= i;
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1205  
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1206               tzdev = 
devm_thermal_zone_of_sensor_register(&pdev->dev, i, tz, (i == 0) ?
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1207                       
                                     &mtk_thermal_ops :
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1208                       
                                     &mtk_thermal_sensor_ops);
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1209  
1f6b0889d0ea03 Axel Lin                  2016-09-07  1210               if 
(IS_ERR(tzdev)) {
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1211                       
if (PTR_ERR(tzdev) == -ENODEV) {
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1212                       
        dev_warn(&pdev->dev,
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1213                       
                 "sensor %d not registered in thermal zone in dt\n", i);
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1214                       
        continue;
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1215                       
}
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1216                       
if (PTR_ERR(tzdev) == -EACCES) {
1f6b0889d0ea03 Axel Lin                  2016-09-07  1217                       
        ret = PTR_ERR(tzdev);
1f6b0889d0ea03 Axel Lin                  2016-09-07  1218                       
        goto err_disable_clk_peri_therm;
1f6b0889d0ea03 Axel Lin                  2016-09-07  1219                       
}
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1220               }
f478b3ee651af2 Amjad Ouled-Ameur         2022-07-20  1221       }
a92db1c8089e82 Sascha Hauer              2015-11-30  1222  
24e21d9f40ec3f Frank Wunderlich          2021-06-08 @1223       ret = 
devm_thermal_add_hwmon_sysfs(tzdev);
24e21d9f40ec3f Frank Wunderlich          2021-06-08  1224       if (ret)
24e21d9f40ec3f Frank Wunderlich          2021-06-08  1225               
dev_warn(&pdev->dev, "error in thermal_add_hwmon_sysfs");
24e21d9f40ec3f Frank Wunderlich          2021-06-08  1226  
a92db1c8089e82 Sascha Hauer              2015-11-30  1227       return 0;
a92db1c8089e82 Sascha Hauer              2015-11-30  1228  
1f6b0889d0ea03 Axel Lin                  2016-09-07  1229  
err_disable_clk_peri_therm:
1f6b0889d0ea03 Axel Lin                  2016-09-07  1230       
clk_disable_unprepare(mt->clk_peri_therm);
a92db1c8089e82 Sascha Hauer              2015-11-30  1231  
err_disable_clk_auxadc:
a92db1c8089e82 Sascha Hauer              2015-11-30  1232       
clk_disable_unprepare(mt->clk_auxadc);
a92db1c8089e82 Sascha Hauer              2015-11-30  1233  
a92db1c8089e82 Sascha Hauer              2015-11-30  1234       return ret;
a92db1c8089e82 Sascha Hauer              2015-11-30  1235  }
a92db1c8089e82 Sascha Hauer              2015-11-30  1236  

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