tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   065f1d86a58cc88249cd8371b29a57c97483753a
commit: 5ff1943fde5aa016f7da31bac45a3ebc0aace4e0 [204/427] drivers: of: add return value to of_reserved_mem_device_init
config: arm-omap2plus_defconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 5ff1943fde5aa016f7da31bac45a3ebc0aace4e0
  # save the attached .config to linux build tree
  make.cross ARCH=arm 

All warnings:

   drivers/of/of_reserved_mem.c: In function 'of_reserved_mem_device_init':
>> drivers/of/of_reserved_mem.c:253:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type]
      return;
      ^
>> drivers/of/of_reserved_mem.c:259:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type]
      return;
      ^

vim +/return +253 drivers/of/of_reserved_mem.c

9dcfee01 Marek Szyprowski 2014-07-14  247  {
9dcfee01 Marek Szyprowski 2014-07-14  248  	struct reserved_mem *rmem;
9dcfee01 Marek Szyprowski 2014-07-14  249  	struct device_node *np;
9dcfee01 Marek Szyprowski 2014-07-14  250  
9dcfee01 Marek Szyprowski 2014-07-14  251  	np = of_parse_phandle(dev->of_node, "memory-region", 0);
9dcfee01 Marek Szyprowski 2014-07-14  252  	if (!np)
9dcfee01 Marek Szyprowski 2014-07-14  253  		return;
9dcfee01 Marek Szyprowski 2014-07-14  254  
9dcfee01 Marek Szyprowski 2014-07-14  255  	rmem = __find_rmem(np);
9dcfee01 Marek Szyprowski 2014-07-14  256  	of_node_put(np);
9dcfee01 Marek Szyprowski 2014-07-14  257  
9dcfee01 Marek Szyprowski 2014-07-14  258  	if (!rmem || !rmem->ops || !rmem->ops->device_init)
9dcfee01 Marek Szyprowski 2014-07-14  259  		return;
9dcfee01 Marek Szyprowski 2014-07-14  260  
9dcfee01 Marek Szyprowski 2014-07-14  261  	rmem->ops->device_init(rmem, dev);
9dcfee01 Marek Szyprowski 2014-07-14  262  	dev_info(dev, "assigned reserved memory node %s\n", rmem->name);

:::::: The code at line 253 was first introduced by commit
:::::: 9dcfee01930e6cc1e84d28c232664f0c19a1f86c drivers: of: add automated assignment of reserved regions to client devices

:::::: TO: Marek Szyprowski <m.szyprowski@samsung.com>
:::::: CC: Grant Likely <grant.likely@linaro.org>

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0-DAY kernel build testing backend              Open Source Technology Center
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