fs/ceph/addr.c:1283:10-17: ERROR: PTR_ERR applied after initialization to constant on line 1282

fs/ceph/addr.c:1283:10-17: ERROR: PTR_ERR applied after initialization to constant on line 1282

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
CC: Christian Brauner <brauner@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8bac8898fe398ffa3e09075ecea2be511725fb0b
commit: ce80b76dd32764cc914975777e058d4fae4f0ea0 ceph: introduce ceph_process_folio_batch() method
date:   9 weeks ago
:::::: branch date: 4 hours ago
:::::: commit date: 9 weeks ago
config: arc-randconfig-r063-20250430 (https://download.01.org/0day-ci/archive/20250430/202504300933.l6UNPehu-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 12.4.0

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202504300933.l6UNPehu-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> fs/ceph/addr.c:1283:10-17: ERROR: PTR_ERR applied after initialization to constant on line 1282

vim +1283 fs/ceph/addr.c

ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1254  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1255  static inline
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1256  int ceph_move_dirty_page_in_page_array(struct address_space *mapping,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1257  					struct writeback_control *wbc,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1258  					struct ceph_writeback_ctl *ceph_wbc,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1259  					struct page *page)
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1260  {
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1261  	struct inode *inode = mapping->host;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1262  	struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1263  	struct ceph_client *cl = fsc->client;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1264  	struct page **pages = ceph_wbc->pages;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1265  	unsigned int index = ceph_wbc->locked_pages;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1266  	gfp_t gfp_flags = ceph_wbc->locked_pages ? GFP_NOWAIT : GFP_NOFS;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1267  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1268  	if (IS_ENCRYPTED(inode)) {
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1269  		pages[index] = fscrypt_encrypt_pagecache_blocks(page,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1270  								PAGE_SIZE,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1271  								0,
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1272  								gfp_flags);
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1273  		if (IS_ERR(pages[index])) {
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1274  			if (PTR_ERR(pages[index]) == -EINVAL) {
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1275  				pr_err_client(cl, "inode->i_blkbits=%hhu\n",
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1276  						inode->i_blkbits);
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1277  			}
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1278  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1279  			/* better not fail on first page! */
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1280  			BUG_ON(ceph_wbc->locked_pages == 0);
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1281  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04 @1282  			pages[index] = NULL;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04 @1283  			return PTR_ERR(pages[index]);
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1284  		}
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1285  	} else {
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1286  		pages[index] = page;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1287  	}
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1288  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1289  	ceph_wbc->locked_pages++;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1290  
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1291  	return 0;
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1292  }
ce80b76dd32764 Viacheslav Dubeyko 2025-02-04  1293  

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