diff options
Diffstat (limited to 'drivers/md/dm-exception-store.c')
| -rw-r--r-- | drivers/md/dm-exception-store.c | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 8b4cd02f75a..002417da122 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -296,42 +296,29 @@ static int write_header(struct pstore *ps) */ static struct disk_exception *get_exception(struct pstore *ps, uint32_t index) { - if (index >= ps->exceptions_per_area) - return NULL; + BUG_ON(index >= ps->exceptions_per_area); return ((struct disk_exception *) ps->area) + index; } -static int read_exception(struct pstore *ps, - uint32_t index, struct disk_exception *result) +static void read_exception(struct pstore *ps, + uint32_t index, struct disk_exception *result) { - struct disk_exception *e; - - e = get_exception(ps, index); - if (!e) - return -EINVAL; + struct disk_exception *e = get_exception(ps, index); /* copy it */ result->old_chunk = le64_to_cpu(e->old_chunk); result->new_chunk = le64_to_cpu(e->new_chunk); - - return 0; } -static int write_exception(struct pstore *ps, - uint32_t index, struct disk_exception *de) +static void write_exception(struct pstore *ps, + uint32_t index, struct disk_exception *de) { - struct disk_exception *e; - - e = get_exception(ps, index); - if (!e) - return -EINVAL; + struct disk_exception *e = get_exception(ps, index); /* copy it */ e->old_chunk = cpu_to_le64(de->old_chunk); e->new_chunk = cpu_to_le64(de->new_chunk); - - return 0; } /* @@ -349,10 +336,7 @@ static int insert_exceptions(struct pstore *ps, int *full) *full = 1; for (i = 0; i < ps->exceptions_per_area; i++) { - r = read_exception(ps, i, &de); - - if (r) - return r; + read_exception(ps, i, &de); /* * If the new_chunk is pointing at the start of |