tree: https://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git for-5.2 head: f83802616b58c9891152a6f414d37716bc224479 commit: f83802616b58c9891152a6f414d37716bc224479 [5/5] leds: fix a potential NULL pointer dereference config: x86_64-randconfig-x015-201910 (attached as .config) compiler: gcc-8 (Debian 8.2.0-21) 8.2.0 reproduce: git checkout f83802616b58c9891152a6f414d37716bc224479 # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers//leds/leds-pca9532.c: In function 'pca9532_probe': >> drivers//leds/leds-pca9532.c:536:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] devid = (int)of_id->data; ^ vim +536 drivers//leds/leds-pca9532.c 511 512 static int pca9532_probe(struct i2c_client *client, 513 const struct i2c_device_id *id) 514 { 515 int devid; 516 const struct of_device_id *of_id; 517 struct pca9532_data *data = i2c_get_clientdata(client); 518 struct pca9532_platform_data *pca9532_pdata = 519 dev_get_platdata(&client->dev); 520 struct device_node *np = client->dev.of_node; 521 522 if (!pca9532_pdata) { 523 if (np) { 524 pca9532_pdata = 525 pca9532_of_populate_pdata(&client->dev, np); 526 if (IS_ERR(pca9532_pdata)) 527 return PTR_ERR(pca9532_pdata); 528 } else { 529 dev_err(&client->dev, "no platform data\n"); 530 return -EINVAL; 531 } 532 of_id = of_match_device(of_pca9532_leds_match, 533 &client->dev); 534 if (unlikely(!of_id)) 535 return -EINVAL; > 536 devid = (int)of_id->data; 537 } else { 538 devid = id->driver_data; 539 } 540 541 if (!i2c_check_functionality(client->adapter, 542 I2C_FUNC_SMBUS_BYTE_DATA)) 543 return -EIO; 544 545 data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); 546 if (!data) 547 return -ENOMEM; 548 549 data->chip_info = &pca9532_chip_info_tbl[devid]; 550 551 dev_info(&client->dev, "setting platform data\n"); 552 i2c_set_clientdata(client, data); 553 data->client = client; 554 mutex_init(&data->update_lock); 555 556 return pca9532_configure(client, data, pca9532_pdata); 557 } 558 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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