Hi Xu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on clk/clk-next] [also build test WARNING on v5.7-rc7 next-20200526] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Xu-Wang/clk-ti-adpll-Add-a-NULL-check-for-devm_kasprintf/20200518-114748 base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next config: x86_64-randconfig-s021-20200527 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-240-gf0fe1cd9-dirty # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/clk/ti/adpll.c:200:32: sparse: sparse: incorrect type in return expression (different base types) @@ expected char const * @@ got int @@ drivers/clk/ti/adpll.c:200:32: sparse: expected char const * drivers/clk/ti/adpll.c:200:32: sparse: got int vim +200 drivers/clk/ti/adpll.c 181 182 static const char *ti_adpll_clk_get_name(struct ti_adpll_data *d, 183 int output_index, 184 const char *postfix) 185 { 186 const char *name; 187 int err; 188 189 if (output_index >= 0) { 190 err = of_property_read_string_index(d->np, 191 "clock-output-names", 192 output_index, 193 &name); 194 if (err) 195 return NULL; 196 } else { 197 name = devm_kasprintf(d->dev, GFP_KERNEL, "%08lx.adpll.%s", 198 d->pa, postfix); 199 if (!name) > 200 return -ENOMEM; 201 } 202 203 return name; 204 } 205 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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