[kbuild-all] [android-goldfish:android-3.18 18/18] drivers/md/bcache/btree.c:1810:1-3: WARNING: PTR_ERR_OR_ZERO can be used

tree: https://android.googlesource.com/kernel/goldfish android-3.18 head: 1898b575e1d49f3c959d792fa32168cde137b7c7 commit: 1898b575e1d49f3c959d792fa32168cde137b7c7 [18/18] bcache: Make gc wakeup sane, remove set_task_state() config: arm64-randconfig-c003-20200916 (attached as .config) compiler: aarch64-linux-gcc (GCC) 5.5.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; coccinelle warnings: (new ones prefixed by >>) Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org