6:10 p.m.
Hi,
url:
https://github.com/0day-ci/linux/commits/schumaker-anna-gmail-com/NFS-Cle...
base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next
config: i386-randconfig-m021-20211025 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com>
New smatch warnings:
fs/nfs/dir.c:1802 nfs_lookup() error: uninitialized symbol 'error'.
vim +/error +1802 fs/nfs/dir.c
597d92891b8859 Bryan Schumaker 2012-07-16 1748 struct dentry *nfs_lookup(struct inode
*dir, struct dentry * dentry, unsigned int flags)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1749 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1750 struct dentry *res;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1751 struct inode *inode = NULL;
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1752 struct nfs_fh *fhandle = NULL;
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1753 struct nfs_fattr *fattr = NULL;
a1147b8281bda9 Trond Myklebust 2020-02-05 1754 unsigned long dir_verifier;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1755 int error;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1756
6de1472f1a4a3b Al Viro 2013-09-16 1757 dfprintk(VFS, "NFS:
lookup(%pd2)\n", dentry);
91d5b47023b608 Chuck Lever 2006-03-20 1758 nfs_inc_stats(dir, NFSIOS_VFSLOOKUP);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1759
130f9ab75dc3af Al Viro 2016-03-07 1760 if (unlikely(dentry->d_name.len >
NFS_SERVER(dir)->namelen))
130f9ab75dc3af Al Viro 2016-03-07 1761 return ERR_PTR(-ENAMETOOLONG);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1762
fd6840714d9cf6 Trond Myklebust 2006-09-05 1763 /*
fd6840714d9cf6 Trond Myklebust 2006-09-05 1764 * If we're doing an exclusive
create, optimize away the lookup
fd6840714d9cf6 Trond Myklebust 2006-09-05 1765 * but don't hash the dentry.
fd6840714d9cf6 Trond Myklebust 2006-09-05 1766 */
9f6d44d418b1f4 Trond Myklebust 2018-05-10 1767 if (nfs_is_exclusive_create(dir, flags)
|| flags & LOOKUP_RENAME_TARGET)
130f9ab75dc3af Al Viro 2016-03-07 1768 return NULL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1769
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1770 res = ERR_PTR(-ENOMEM);
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1771 fhandle = nfs_alloc_fhandle();
ca3c213e9f9273 Anna Schumaker 2021-10-22 1772 fattr =
nfs_alloc_fattr_with_label(NFS_SERVER(dir));
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1773 if (fhandle == NULL || fattr == NULL)
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1774 goto out;
"error" uninitialized.
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1775
a1147b8281bda9 Trond Myklebust 2020-02-05 1776 dir_verifier =
nfs_save_change_attribute(dir);
6e0d0be715fe04 Trond Myklebust 2013-08-20 1777 trace_nfs_lookup_enter(dir, dentry,
flags);
ca3c213e9f9273 Anna Schumaker 2021-10-22 1778 error = NFS_PROTO(dir)->lookup(dir,
dentry, fhandle, fattr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1779 if (error == -ENOENT)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1780 goto no_entry;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1781 if (error < 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1782 res = ERR_PTR(error);
ca3c213e9f9273 Anna Schumaker 2021-10-22 1783 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1784 }
ca3c213e9f9273 Anna Schumaker 2021-10-22 1785 inode = nfs_fhget(dentry->d_sb,
fhandle, fattr, fattr->label);
bf0c84f1614bff Namhyung Kim 2010-12-28 1786 res = ERR_CAST(inode);
03f28e3a2059fc Trond Myklebust 2006-03-20 1787 if (IS_ERR(res))
ca3c213e9f9273 Anna Schumaker 2021-10-22 1788 goto out;
54ceac45159860 David Howells 2006-08-22 1789
63519fbc67d0d9 Trond Myklebust 2016-11-19 1790 /* Notify readdir to use READDIRPLUS */
63519fbc67d0d9 Trond Myklebust 2016-11-19 1791 nfs_force_use_readdirplus(dir);
d69ee9b85541a6 Trond Myklebust 2012-05-01 1792
^1da177e4c3f41 Linus Torvalds 2005-04-16 1793 no_entry:
41d28bca2da4bd Al Viro 2014-10-12 1794 res = d_splice_alias(inode, dentry);
9eaef27b36a6b7 Trond Myklebust 2006-10-21 1795 if (res != NULL) {
9eaef27b36a6b7 Trond Myklebust 2006-10-21 1796 if (IS_ERR(res))
ca3c213e9f9273 Anna Schumaker 2021-10-22 1797 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1798 dentry = res;
9eaef27b36a6b7 Trond Myklebust 2006-10-21 1799 }
a1147b8281bda9 Trond Myklebust 2020-02-05 1800 nfs_set_verifier(dentry, dir_verifier);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1801 out:
ca3c213e9f9273 Anna Schumaker 2021-10-22 @1802 trace_nfs_lookup_exit(dir, dentry,
flags, error);
^^^^^
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1803 nfs_free_fattr(fattr);
e1fb4d05d5a326 Trond Myklebust 2010-04-16 1804 nfs_free_fhandle(fhandle);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1805 return res;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1806 }
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0-DAY CI Kernel Test Service, Intel Corporation
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