On Fri, 2020-03-20 at 16:11 +0300, Dan Carpenter wrote: > Hi "José, > > Thank you for the patch! Perhaps something to improve: > > url: > https://github.com/0day-ci/linux/commits/Jos-Roberto-de-Souza/drm-i915-tc-tgl-Implement-TCCOLD-sequences/20200319-080253 > base: git://anongit.freedesktop.org/drm-intel for-linux-next > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> > > smatch warnings: > drivers/gpu/drm/i915/display/intel_tc.c:554 icl_tc_cold_request() > error: uninitialized symbol 'ret'. > > # > https://github.com/0day-ci/linux/commit/29f27e6df6ad82b09a3c9ddaf5f51b2fc1647178 > git remote add linux-review https://github.com/0day-ci/linux > git remote update linux-review > git checkout 29f27e6df6ad82b09a3c9ddaf5f51b2fc1647178 > vim +/ret +554 drivers/gpu/drm/i915/display/intel_tc.c > > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 528 static inline > int icl_tc_cold_request(struct intel_digital_port *dig_port, > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 529 > bool block) > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 530 { > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 531 struct > drm_i915_private *i915 = to_i915(dig_port->base.base.dev); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 532 enum > intel_display_power_domain aux_domain; > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 533 int > ret; > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 534 > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 535 aux_dom > ain = intel_aux_ch_to_power_domain(dig_port->aux_ch); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 536 > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 537 if > (block) { > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 538 > dig_port->tc_cold_wakeref = > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 539 > intel_display_power_get_without_ack(i915, aux_domain); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 540 > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 541 > do { > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 542 > ret = sandybridge_pcode_write_timeout(i915, > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 543 > ICL_PCODE_EXIT_TCCOLD, > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 544 > 0, 250, 1); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 545 > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 546 > } while (ret == -EAGAIN); > > ret is only initialized on this path Thanks > > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 547 } else > if (dig_port->tc_mode == TC_PORT_LEGACY) { > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 548 > drm_WARN_ON(&i915->drm, !dig_port->tc_lock_wakeref); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 549 > intel_display_power_put(i915, aux_domain, > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 550 > dig_port->tc_cold_wakeref); > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 551 > dig_port->tc_cold_wakeref = 0; > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 552 } > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 553 > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 @554 return > ret; > 29f27e6df6ad82 José Roberto de Souza 2020-03-18 555 } > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
