Hi Krzysztof, [auto build test WARNING on balbi-usb/next] [also build test WARNING on v4.9 next-20161220] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Krzysztof-Opasiak/usb-gadget-ether-Add-n-to-each-attribute-of-ethernet-functions/20161221-070119 base: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next config: openrisc-allmodconfig (attached as .config) compiler: or32-linux-gcc (GCC) 4.5.1-or32-1.0rc1 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=openrisc All warnings (new ones prefixed by >>): drivers/usb/gadget/legacy/printer.c: In function 'printer_bind': >> drivers/usb/gadget/legacy/printer.c:161:3: warning: statement with no effect vim +161 drivers/usb/gadget/legacy/printer.c 145 struct f_printer_opts *opts; 146 int ret; 147 148 fi_printer = usb_get_function_instance("printer"); 149 if (IS_ERR(fi_printer)) 150 return PTR_ERR(fi_printer); 151 152 opts = container_of(fi_printer, struct f_printer_opts, func_inst); 153 opts->minor = 0; 154 opts->q_len = QLEN; 155 if (iPNPstring) { 156 opts->pnp_string = kstrdup(iPNPstring, GFP_KERNEL); 157 if (!opts->pnp_string) { 158 ret = -ENOMEM; 159 goto fail_put_func_inst; 160 } > 161 opts->pnp_string_allocated; 162 /* 163 * we don't free this memory in case of error 164 * as printer cleanup func will do this for us 165 */ 166 } else { 167 opts->pnp_string = pnp_string; 168 } 169 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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