Hi Artur, https://git-scm.com/docs/git-format-patch ] url: https://github.com/0day-ci/linux/commits/Artur-Petrosyan/usb-dwc2-Update-exit-hibernation-when-port-reset-is-asserted/20210415-144021 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing config: i386-randconfig-m021-20210415 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/usb/dwc2/platform.c:324 dwc2_driver_remove() error: potentially dereferencing uninitialized 'gr'. vim +/gr +324 drivers/usb/dwc2/platform.c 5b9974b13e3648 drivers/staging/dwc2/platform.c Matthijs Kooijman 2013-04-22 316 static int dwc2_driver_remove(struct platform_device *dev) 5b9974b13e3648 drivers/staging/dwc2/platform.c Matthijs Kooijman 2013-04-22 317 { 5b9974b13e3648 drivers/staging/dwc2/platform.c Matthijs Kooijman 2013-04-22 318 struct dwc2_hsotg *hsotg = platform_get_drvdata(dev); 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 319 struct dwc2_gregs_backup *gr; ^^ b46b1ef7b0da5c drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-08 320 int ret = 0; b46b1ef7b0da5c drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-08 321 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 322 /* Exit Hibernation when driver is removed. */ 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 323 if (hsotg->hibernated) { 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 @324 if (gr->gotgctl & GOTGCTL_CURMODE_HOST) { ^^^^^^^^^^^ 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 325 ret = dwc2_exit_hibernation(hsotg, 0, 0, 1); 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 326 if (ret) 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 327 dev_err(hsotg->dev, 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 328 "exit hibernation failed.\n"); 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 329 } else { 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 330 ret = dwc2_exit_hibernation(hsotg, 0, 0, 0); 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 331 if (ret) 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 332 dev_err(hsotg->dev, 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 333 "exit hibernation failed.\n"); 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 334 } 8e4dbc0200040a drivers/usb/dwc2/platform.c Artur Petrosyan 2021-04-15 335 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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