tree: git://git.monstr.eu/linux-2.6-microblaze for-test head: 21f70b89dfef52f69ce1413868950cf5baf3868d commit: 6af82e03b38e89985269329ceeace439a0d3d30c [691/1134] fpga: zynqmp-fpga: Add support for pl configuration readback config: i386-randconfig-m021-20200816 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; smatch warnings: drivers/fpga/zynqmp-fpga.c:186 zynqmp_fpga_read_cfgreg() error: uninitialized symbol 'ret'. git remote add monstr-microblaze git://git.monstr.eu/linux-2.6-microblaze git fetch --no-tags monstr-microblaze for-test git checkout 6af82e03b38e89985269329ceeace439a0d3d30c vim +/ret +186 drivers/fpga/zynqmp-fpga.c 156 157 static int zynqmp_fpga_read_cfgreg(struct fpga_manager *mgr, 158 struct seq_file *s) 159 { 160 const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops(); 161 int ret, val; 162 unsigned int *buf; 163 dma_addr_t dma_addr; 164 struct zynqmp_configreg *p = cfgreg; 165 166 buf = dma_alloc_coherent(mgr->dev.parent, READ_DMA_SIZE, 167 &dma_addr, GFP_KERNEL); 168 if (!buf) 169 return -ENOMEM; 170 171 seq_puts(s, "zynqMP FPGA Configuration register contents are\n"); 172 173 while (p->reg) { 174 ret = eemi_ops->fpga_read(p->offset, dma_addr, readback_type, 175 &val); 176 if (ret) 177 goto free_dmabuf; 178 seq_printf(s, "%s --> \t %x \t\r\n", p->reg, val); 179 p++; 180 } 181 182 free_dmabuf: 183 dma_free_coherent(mgr->dev.parent, READ_DMA_SIZE, buf, 184 dma_addr); 185 187 } 188 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org