gluebi.c (5def48982b778aaebe201f85af7170b7d0a6619f) gluebi.c (664addc248d2fed68d013d26ff2fc796d7134259)
1/*
2 * Copyright (c) International Business Machines Corp., 2006
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *

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210 */
211static int gluebi_write(struct mtd_info *mtd, loff_t to, size_t len,
212 size_t *retlen, const u_char *buf)
213{
214 int err = 0, lnum, offs, total_written;
215 struct gluebi_device *gluebi;
216
217 gluebi = container_of(mtd, struct gluebi_device, mtd);
1/*
2 * Copyright (c) International Business Machines Corp., 2006
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *

--- 201 unchanged lines hidden (view full) ---

210 */
211static int gluebi_write(struct mtd_info *mtd, loff_t to, size_t len,
212 size_t *retlen, const u_char *buf)
213{
214 int err = 0, lnum, offs, total_written;
215 struct gluebi_device *gluebi;
216
217 gluebi = container_of(mtd, struct gluebi_device, mtd);
218
219 if (!(mtd->flags & MTD_WRITEABLE))
220 return -EROFS;
221
222 lnum = div_u64_rem(to, mtd->erasesize, &offs);
223
224 if (len % mtd->writesize || offs % mtd->writesize)
225 return -EINVAL;
226
227 total_written = len;
228 while (total_written) {
229 size_t to_write = mtd->erasesize - offs;

--- 28 unchanged lines hidden (view full) ---

258 int err, i, lnum, count;
259 struct gluebi_device *gluebi;
260
261 if (mtd_mod_by_ws(instr->addr, mtd) || mtd_mod_by_ws(instr->len, mtd))
262 return -EINVAL;
263
264 lnum = mtd_div_by_eb(instr->addr, mtd);
265 count = mtd_div_by_eb(instr->len, mtd);
218 lnum = div_u64_rem(to, mtd->erasesize, &offs);
219
220 if (len % mtd->writesize || offs % mtd->writesize)
221 return -EINVAL;
222
223 total_written = len;
224 while (total_written) {
225 size_t to_write = mtd->erasesize - offs;

--- 28 unchanged lines hidden (view full) ---

254 int err, i, lnum, count;
255 struct gluebi_device *gluebi;
256
257 if (mtd_mod_by_ws(instr->addr, mtd) || mtd_mod_by_ws(instr->len, mtd))
258 return -EINVAL;
259
260 lnum = mtd_div_by_eb(instr->addr, mtd);
261 count = mtd_div_by_eb(instr->len, mtd);
266
267 gluebi = container_of(mtd, struct gluebi_device, mtd);
268
262 gluebi = container_of(mtd, struct gluebi_device, mtd);
263
269 if (!(mtd->flags & MTD_WRITEABLE))
270 return -EROFS;
271
272 for (i = 0; i < count - 1; i++) {
273 err = ubi_leb_unmap(gluebi->desc, lnum + i);
274 if (err)
275 goto out_err;
276 }
277 /*
278 * MTD erase operations are synchronous, so we have to make sure the
279 * physical eraseblock is wiped out.

--- 252 unchanged lines hidden --- 		264 for (i = 0; i < count - 1; i++) {
265 err = ubi_leb_unmap(gluebi->desc, lnum + i);
266 if (err)
267 goto out_err;
268 }
269 /*
270 * MTD erase operations are synchronous, so we have to make sure the
271 * physical eraseblock is wiped out.

--- 252 unchanged lines hidden ---