Hello, Please check line 342, which seems to be missing an [i]. julia ---------- Forwarded message ---------- Date: Wed, 9 Feb 2022 17:21:42 +0800 From: kernel test robot <lkp(a)intel.com&gt; To: kbuild(a)lists.01.org Cc: lkp(a)intel.com, Julia Lawall <julia.lawall(a)lip6.fr&gt; Subject: [xilinx-xlnx:xlnx_rebase_v5.15 400/872] drivers/usb/gadget/function/f_tcm.c:340:2-12: alloc with no test, possible model on line 345 CC: kbuild-all(a)lists.01.org CC: linux-arm-kernel(a)lists.infradead.org TO: Quanyang Wang <quanyang.wang(a)windriver.com&gt; CC: Michal Simek <monstr(a)monstr.eu&gt; CC: Manish Narani <manish.narani(a)xilinx.com&gt; tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15 head: 1183ce490adb103e5e569b8ebd74c50c885ddc05 commit: 52817ef9c056b35660cd1fd8cd02c3d3603c8059 [400/872] Revert "usb: function: f_tcm: Add support for getting alt interface number" :::::: branch date: 8 days ago :::::: commit date: 8 days ago config: i386-randconfig-c021 (https://download.01.org/0day-ci/archive/20220209/202202091733.OwkhhpPA-lk...) 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(a)intel.com&gt; Reported-by: Julia Lawall <julia.lawall(a)lip6.fr&gt; cocci warnings: (new ones prefixed by >>) vim +340 drivers/usb/gadget/function/f_tcm.c c6628548acf083 Rajnikant Bhojani 2022-01-26 331 c6628548acf083 Rajnikant Bhojani 2022-01-26 332 static int alloc_cmd_resource(struct f_uas *fu, int num, struct usb_ep *ep, c6628548acf083 Rajnikant Bhojani 2022-01-26 333 void (*complete)(struct usb_ep *ep, c6628548acf083 Rajnikant Bhojani 2022-01-26 334 struct usb_request *req)) c6628548acf083 Rajnikant Bhojani 2022-01-26 335 { c6628548acf083 Rajnikant Bhojani 2022-01-26 336 int i; c6628548acf083 Rajnikant Bhojani 2022-01-26 337 c6628548acf083 Rajnikant Bhojani 2022-01-26 338 fu->ncmd = num; c6628548acf083 Rajnikant Bhojani 2022-01-26 339 for (i = 0; i < fu->ncmd; i++) { c6628548acf083 Rajnikant Bhojani 2022-01-26 @340 fu->cmd[i] = kcalloc(fu->ncmd, sizeof(struct usbg_cdb), c6628548acf083 Rajnikant Bhojani 2022-01-26 341 GFP_KERNEL); c6628548acf083 Rajnikant Bhojani 2022-01-26 342 if (!fu->cmd) c6628548acf083 Rajnikant Bhojani 2022-01-26 343 goto err_cmd; c6628548acf083 Rajnikant Bhojani 2022-01-26 344 c6628548acf083 Rajnikant Bhojani 2022-01-26 @345 fu->cmd[i]->req = usb_ep_alloc_request(ep, GFP_KERNEL); c6628548acf083 Rajnikant Bhojani 2022-01-26 346 if (!fu->cmd[i]->req) c6628548acf083 Rajnikant Bhojani 2022-01-26 347 goto err_cmd; c6628548acf083 Rajnikant Bhojani 2022-01-26 348 c6628548acf083 Rajnikant Bhojani 2022-01-26 349 fu->cmd[i]->buf = kmalloc(fu->ep_out->maxpacket, GFP_KERNEL); c6628548acf083 Rajnikant Bhojani 2022-01-26 350 if (!fu->cmd[i]->buf) c6628548acf083 Rajnikant Bhojani 2022-01-26 351 goto err_cmd; c6628548acf083 Rajnikant Bhojani 2022-01-26 352 c6628548acf083 Rajnikant Bhojani 2022-01-26 353 fu->cmd[i]->req->complete = complete; c6628548acf083 Rajnikant Bhojani 2022-01-26 354 fu->cmd[i]->req->buf = fu->cmd[i]->buf; c6628548acf083 Rajnikant Bhojani 2022-01-26 355 fu->cmd[i]->req->length = fu->ep_out->maxpacket; c6628548acf083 Rajnikant Bhojani 2022-01-26 356 fu->cmd[i]->req->context = fu; c6628548acf083 Rajnikant Bhojani 2022-01-26 357 } c6628548acf083 Rajnikant Bhojani 2022-01-26 358 c6628548acf083 Rajnikant Bhojani 2022-01-26 359 return 0; c6628548acf083 Rajnikant Bhojani 2022-01-26 360 err_cmd: c6628548acf083 Rajnikant Bhojani 2022-01-26 361 free_cmd_resource(fu, ep); c6628548acf083 Rajnikant Bhojani 2022-01-26 362 return -ENOMEM; c6628548acf083 Rajnikant Bhojani 2022-01-26 363 } c6628548acf083 Rajnikant Bhojani 2022-01-26 364 :::::: The code at line 340 was first introduced by commit :::::: c6628548acf08392524df4bdbeee080f6f5ecc43 usb: gadget: f_tcm: queue multiple commands request :::::: TO: Rajnikant Bhojani <rajnikant.bhojani(a)xilinx.com&gt; :::::: CC: Michal Simek <michal.simek(a)xilinx.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org