diff options
Diffstat (limited to 'block/partitions/msdos.c')
| -rw-r--r-- | block/partitions/msdos.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c index 9123f250b425..93e7c1b32edd 100644 --- a/block/partitions/msdos.c +++ b/block/partitions/msdos.c @@ -159,8 +159,9 @@ static void parse_extended(struct parsed_partitions *state, /* * First process the data partition(s) */ - for (i=0; i<4; i++, p++) { + for (i = 0; i < 4; i++, p++) { sector_t offs, size, next; + if (!nr_sects(p) || is_extended_partition(p)) continue; @@ -194,7 +195,7 @@ static void parse_extended(struct parsed_partitions *state, * It should be a link to the next logical partition. */ p -= 4; - for (i=0; i<4; i++, p++) + for (i = 0; i < 4; i++, p++) if (nr_sects(p) && is_extended_partition(p)) break; if (i == 4) @@ -243,8 +244,8 @@ static void parse_solaris_x86(struct parsed_partitions *state, return; } /* Ensure we can handle previous case of VTOC with 8 entries gracefully */ - max_nparts = le16_to_cpu (v->v_nparts) > 8 ? SOLARIS_X86_NUMSLICE : 8; - for (i=0; i<max_nparts && state->next<state->limit; i++) { + max_nparts = le16_to_cpu(v->v_nparts) > 8 ? SOLARIS_X86_NUMSLICE : 8; + for (i = 0; i < max_nparts && state->next < state->limit; i++) { struct solaris_x86_slice *s = &v->v_slice[i]; char tmp[3 + 10 + 1 + 1]; @@ -409,7 +410,7 @@ static void parse_minix(struct parsed_partitions *state, /* The first sector of a Minix partition can have either * a secondary MBR describing its subpartitions, or * the normal boot sector. */ - if (msdos_magic_present (data + 510) && + if (msdos_magic_present(data + 510) && SYS_IND(p) == MINIX_PARTITION) { /* subpartition table present */ char tmp[1 + BDEVNAME_SIZE + 10 + 9 + 1]; @@ -527,6 +528,7 @@ int msdos_partition(struct parsed_partitions *state) for (slot = 1 ; slot <= 4 ; slot++, p++) { sector_t start = start_sect(p)*sector_size; sector_t size = nr_sects(p)*sector_size; + if (!size) continue; if (is_extended_partition(p)) { @@ -537,6 +539,7 @@ int msdos_partition(struct parsed_partitions *state) * sector, although it may not be enough/proper. */ sector_t n = 2; + n = min(size, max(sector_size, n)); put_partition(state, slot, start, n); |