lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

UBI: fix and clean-up error paths in WL worker

Browse Source 
This patch fixes the error path in the WL worker - in same cases
UBI oopses when 'goto out_error' happens and e1 or e2 are NULL.
This patch also cleans up the error paths a little. And I have
tested nearly all error paths in the WL worker.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy
2009-05-24 11:58:58 +03:00
parent 90bf0265e5
commit 87960c0b12
2 changed files with 53 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/mtd/ubi/eba.c
View File

@ -963,7 +963,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
vol_id = be32_to_cpu(vid_hdr->vol_id);
lnum = be32_to_cpu(vid_hdr->lnum);
dbg_eba("copy LEB %d:%d, PEB %d to PEB %d", vol_id, lnum, from, to);
dbg_wl("copy LEB %d:%d, PEB %d to PEB %d", vol_id, lnum, from, to);
if (vid_hdr->vol_type == UBI_VID_STATIC) {
data_size = be32_to_cpu(vid_hdr->data_size);
@ -984,7 +984,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
spin_unlock(&ubi->volumes_lock);
if (!vol) {
/* No need to do further work, cancel */
dbg_eba("volume %d is being removed, cancel", vol_id);
dbg_wl("volume %d is being removed, cancel", vol_id);
return MOVE_CANCEL_RACE;
}
@ -1003,7 +1003,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
*/
err = leb_write_trylock(ubi, vol_id, lnum);
if (err) {
dbg_eba("contention on LEB %d:%d, cancel", vol_id, lnum);
dbg_wl("contention on LEB %d:%d, cancel", vol_id, lnum);
return MOVE_CANCEL_RACE;
}
@ -1013,9 +1013,9 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
* cancel it.
*/
if (vol->eba_tbl[lnum] != from) {
dbg_eba("LEB %d:%d is no longer mapped to PEB %d, mapped to "
"PEB %d, cancel", vol_id, lnum, from,
vol->eba_tbl[lnum]);
dbg_wl("LEB %d:%d is no longer mapped to PEB %d, mapped to "
"PEB %d, cancel", vol_id, lnum, from,
vol->eba_tbl[lnum]);
err = MOVE_CANCEL_RACE;
goto out_unlock_leb;
}
@ -1027,7 +1027,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
* @ubi->buf_mutex.
*/
mutex_lock(&ubi->buf_mutex);
dbg_eba("read %d bytes of data", aldata_size);
dbg_wl("read %d bytes of data", aldata_size);
err = ubi_io_read_data(ubi, ubi->peb_buf1, from, 0, aldata_size);
if (err && err != UBI_IO_BITFLIPS) {
ubi_warn("error %d while reading data from PEB %d",