Hi Saurabh, kernel test robot noticed the following build warnings: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.4-rc4 next-20230602] [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/Saurabh-Sengar/uio-Add-hv_vmbus_client-driver/20230602-160029 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/1685692629-31351-2-git-send-email-ssengar%40linux.microsoft.com patch subject: [PATCH 1/5] uio: Add hv_vmbus_client driver config: i386-randconfig-c001-20230604 (https://download.01.org/0day-ci/archive/20230604/202306040910.13oLufQd-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306040910.13oLufQd-lkp@xxxxxxxxx/ cocci warnings: (new ones prefixed by >>) >> drivers/uio/uio_hv_vmbus_client.c:195:1-6: WARNING: invalid free of devm_ allocated data vim +195 drivers/uio/uio_hv_vmbus_client.c 158 159 static int uio_hv_vmbus_probe(struct hv_device *dev, const struct hv_vmbus_device_id *dev_id) 160 { 161 struct uio_hv_vmbus_dev *pdata; 162 int ret = 0; 163 char *name = NULL; 164 165 pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); 166 if (!pdata) 167 return -ENOMEM; 168 169 name = kasprintf(GFP_KERNEL, "%pUl", &dev->dev_instance); 170 171 /* Fill general uio info */ 172 pdata->info.name = name; /* /sys/class/uio/uioX/name */ 173 pdata->info.version = DRIVER_VERSION; 174 pdata->info.irqcontrol = uio_hv_vmbus_irqcontrol; 175 pdata->info.open = uio_hv_vmbus_open; 176 pdata->info.release = uio_hv_vmbus_release; 177 pdata->info.irq = UIO_IRQ_CUSTOM; 178 pdata->info.priv = pdata; 179 pdata->device = dev; 180 181 ret = uio_register_device(&dev->device, &pdata->info); 182 if (ret) { 183 dev_err(&dev->device, "uio_hv_vmbus register failed\n"); 184 goto fail; 185 } 186 187 ret = sysfs_create_file(&dev->device.kobj, &dev_attr_ring_size.attr); 188 if (ret) 189 dev_notice(&dev->device, "sysfs create ring size file failed; %d\n", ret); 190 191 hv_set_drvdata(dev, pdata); 192 return 0; 193 194 fail: > 195 kfree(pdata); 196 return ret; 197 } 198 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
