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Message-ID: <201611270743.Rc4TmNre%fengguang.wu@intel.com> Date: Sun, 27 Nov 2016 07:11:46 +0800 From: kbuild test robot <fengguang.wu@...el.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: kbuild-all@...org, linux-kernel@...r.kernel.org Subject: drivers/staging/greybus/bootrom.c:298:35-39: ERROR: fw is NULL but dereferenced. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a0d60e62ea5c88a9823410e9d0929a513e29dea2 commit: f44dd184634d401f5cf88a6d8b4a60d5ff4f417f Merge greybus driver tree into 4.8-rc6 date: 10 weeks ago coccinelle warnings: (new ones prefixed by >>) >> drivers/staging/greybus/bootrom.c:298:35-39: ERROR: fw is NULL but dereferenced. vim +298 drivers/staging/greybus/bootrom.c 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 282 dev_err(dev, "%s: error allocating response\n", __func__); a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 283 ret = -ENOMEM; a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 284 goto unlock; 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 285 } 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 286 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 287 firmware_response = op->response->payload; 98645a9c drivers/staging/greybus/firmware.c Johan Hovold 2015-11-19 288 memcpy(firmware_response->data, fw->data + offset, size); 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 289 fc41c2da drivers/staging/greybus/firmware.c Eli Sennesh 2016-01-08 290 dev_dbg(dev, "responding with firmware (offs = %u, size = %u)\n", offset, fc41c2da drivers/staging/greybus/firmware.c Eli Sennesh 2016-01-08 291 size); fc41c2da drivers/staging/greybus/firmware.c Eli Sennesh 2016-01-08 292 a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 293 unlock: a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 294 mutex_unlock(&bootrom->mutex); a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 295 a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 296 queue_work: a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 297 /* Refresh timeout */ a4293e1d drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 @298 if (!ret && (offset + size == fw->size)) a4293e1d drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 299 next_request = NEXT_REQ_READY_TO_BOOT; a4293e1d drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 300 else a4293e1d drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 301 next_request = NEXT_REQ_GET_FIRMWARE; a4293e1d drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 302 dbb8cfeb drivers/staging/greybus/bootrom.c Viresh Kumar 2016-06-22 303 gb_bootrom_set_timeout(bootrom, next_request, NEXT_REQ_TIMEOUT_MS); a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 304 a956d939 drivers/staging/greybus/bootrom.c Viresh Kumar 2016-05-09 305 return ret; 90f1b617 drivers/staging/greybus/firmware.c Viresh Kumar 2015-08-12 306 } :::::: The code at line 298 was first introduced by commit :::::: a4293e1d4e6416477976ee3bd248589d3fc4bb19 greybus: bootrom: Enhance timeout error message :::::: TO: Viresh Kumar <viresh.kumar@...aro.org> :::::: CC: Greg Kroah-Hartman <gregkh@...gle.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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