101 	int err = 0;  in rewrite_page()  local
116 	err = mtd_write_oob(mtd, offset, &ops);  in rewrite_page()
117 	if (err || ops.retlen != mtd->writesize) {  in rewrite_page()
118 		pr_err("error: write_oob failed (%d)\n", err);  in rewrite_page()
119 		if (!err)  in rewrite_page()
120 			err = -EIO;  in rewrite_page()
123 	return err;  in rewrite_page()
130 	int err = 0;  in read_page()  local
140 	err = mtd_read(mtd, offset, mtd->writesize, &read, rbuffer);  in read_page()
141 	if (!err || err == -EUCLEAN)  in read_page()
142 		err = mtd->ecc_stats.corrected - oldstats.corrected;  in read_page()
144 	if (err < 0 || read != mtd->writesize) {  in read_page()
146 		if (err >= 0)  in read_page()
147 			err = -EIO;  in read_page()
150 	return err;  in read_page()
202 	int err = 0;  in incremental_errors_test()  local
211 	err = write_page(1);  in incremental_errors_test()
212 	if (err)  in incremental_errors_test()
217 		err = rewrite_page(1);  in incremental_errors_test()
218 		if (err)  in incremental_errors_test()
221 		err = read_page(1);  in incremental_errors_test()
222 		if (err > 0)  in incremental_errors_test()
223 			pr_info("Read reported %d corrected bit errors\n", err);  in incremental_errors_test()
224 		if (err < 0) {  in incremental_errors_test()
226 				errs_per_subpage, err);  in incremental_errors_test()
227 			err = 0;  in incremental_errors_test()
231 		err = verify_page(1);  in incremental_errors_test()
232 		if (err) {  in incremental_errors_test()
241 			err = insert_biterror(i * subsize);  in incremental_errors_test()
242 			if (err < 0)  in incremental_errors_test()
249 	return err;  in incremental_errors_test()
258 	int err = 0;  in overwrite_test()  local
274 	err = write_page(1);  in overwrite_test()
275 	if (err)  in overwrite_test()
280 		err = write_page(0);  in overwrite_test()
281 		if (err)  in overwrite_test()
284 		err = read_page(0);  in overwrite_test()
285 		if (err >= 0) {  in overwrite_test()
286 			if (err >= MAXBITS) {  in overwrite_test()
288 				err = -EIO;  in overwrite_test()
291 			bitstats[err]++;  in overwrite_test()
292 			if (err > max_corrected) {  in overwrite_test()
293 				max_corrected = err;  in overwrite_test()
295 					err);  in overwrite_test()
298 			pr_info("Read reported error %d\n", err);  in overwrite_test()
299 			err = 0;  in overwrite_test()
303 		err = verify_page(0);  in overwrite_test()
304 		if (err) {  in overwrite_test()
310 		err = mtdtest_relax();  in overwrite_test()
311 		if (err)  in overwrite_test()
325 	return err;  in overwrite_test()
330 	int err = 0;  in mtd_nandbiterrs_init()  local
338 		err = PTR_ERR(mtd);  in mtd_nandbiterrs_init()
345 		err = -ENODEV;  in mtd_nandbiterrs_init()
366 		err = -ENOMEM;  in mtd_nandbiterrs_init()
372 		err = -ENOMEM;  in mtd_nandbiterrs_init()
376 	err = mtdtest_erase_eraseblock(mtd, eraseblock);  in mtd_nandbiterrs_init()
377 	if (err)  in mtd_nandbiterrs_init()
381 		err = incremental_errors_test();  in mtd_nandbiterrs_init()
383 		err = overwrite_test();  in mtd_nandbiterrs_init()
385 	if (err)  in mtd_nandbiterrs_init()
389 	err = mtdtest_erase_eraseblock(mtd, eraseblock);  in mtd_nandbiterrs_init()
390 	if (err)  in mtd_nandbiterrs_init()
393 	err = -EIO;  in mtd_nandbiterrs_init()
406 	return err;  in mtd_nandbiterrs_init()