linux-kernel - [jlayton:ceph-netfs-llist 1/10] fs/netfs/buffered_flush.c:923 netfs_require_flush_group() error: uninitialized symbol 'group'.

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Message-ID: <202207091447.3Om783sk-lkp@intel.com>
Date:   Tue, 12 Jul 2022 12:50:00 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     kbuild@...ts.01.org, David Howells <dhowells@...hat.com>
Cc:     lkp@...el.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Jeff Layton <jlayton@...nel.org>
Subject: [jlayton:ceph-netfs-llist 1/10] fs/netfs/buffered_flush.c:923
 netfs_require_flush_group() error: uninitialized symbol 'group'.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git ceph-netfs-llist
head:   fd428464b2220bd6c59f0a30f9dadb4720b3efb5
commit: 3d4ae7bbf12af2c1ee8f93df5d6ea3556bdfb6ca [1/10] netfs: Add a write context
config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220709/202207091447.3Om783sk-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>

New smatch warnings:
fs/netfs/buffered_flush.c:923 netfs_require_flush_group() error: uninitialized symbol 'group'.

vim +/group +923 fs/netfs/buffered_flush.c

3d4ae7bbf12af2 David Howells 2022-07-07  911  int netfs_require_flush_group(struct netfs_write_context *write, bool force)
ce4670495468b7 David Howells 2022-02-07  912  {
ce4670495468b7 David Howells 2022-02-07  913  	struct netfs_flush_group *group;
3d4ae7bbf12af2 David Howells 2022-07-07  914  	struct netfs_inode *ctx = write->ctx;
ce4670495468b7 David Howells 2022-02-07  915  
ce4670495468b7 David Howells 2022-02-07  916  	if (list_empty(&ctx->flush_groups) || force) {
ce4670495468b7 David Howells 2022-02-07  917  		kdebug("new flush group");
3d4ae7bbf12af2 David Howells 2022-07-07  918  		group = netfs_new_flush_group(ctx, NULL);
ce4670495468b7 David Howells 2022-02-07  919  		if (!group)
ce4670495468b7 David Howells 2022-02-07  920  			return -ENOMEM;
ce4670495468b7 David Howells 2022-02-07  921  	}

"group" not initialized on else path

3d4ae7bbf12af2 David Howells 2022-07-07  922  
3d4ae7bbf12af2 David Howells 2022-07-07 @923  	write->flush_group = group;
ce4670495468b7 David Howells 2022-02-07  924  	return 0;
ce4670495468b7 David Howells 2022-02-07  925  }

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