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ceph: fix NULL pointer deref when debugging is enabled 

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton 2019-04-23 14:18:45 -04:00 committed by Ilya Dryomov
parent 428bb68ad9
commit 40e7e2c0e8
1 changed files with 1 additions and 1 deletions
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2
fs/ceph/file.c
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@ -928,7 +928,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
dout("sync_direct_%s on file %p %lld~%u snapc %p seq %lld\n", dout("sync_direct_%s on file %p %lld~%u snapc %p seq %lld\n",
(write ? "write" : "read"), file, pos, (unsigned)count, (write ? "write" : "read"), file, pos, (unsigned)count,
snapc, snapc->seq); snapc, snapc ? snapc->seq : 0);
ret = filemap_write_and_wait_range(inode->i_mapping, ret = filemap_write_and_wait_range(inode->i_mapping,
pos, pos + count - 1); pos, pos + count - 1);