linux-kernel - linux-next: build warning after merge of the pidfd-fixes tree

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Date:   Tue, 10 Mar 2020 08:07:58 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christian Brauner <christian@...uner.io>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next: build warning after merge of the pidfd-fixes tree

Hi all,

After merging the pidfd-fixes tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

In file included from include/linux/rwsem.h:18,
                 from include/linux/mm_types.h:11,
                 from include/linux/mmzone.h:21,
                 from include/linux/gfp.h:6,
                 from include/linux/mm.h:10,
                 from kernel/pid.c:30:
kernel/pid.c: In function 'alloc_pid':
include/linux/err.h:26:9: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   26 |  return (void *) error;
      |         ^~~~~~~~~~~~~~
kernel/pid.c:168:6: note: 'retval' was declared here
  168 |  int retval;
      |      ^~~~~~

Introduced by commit

  8deb24dcb89c ("pid: make ENOMEM return value more obvious")

-- 
Cheers,
Stephen Rothwell

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