1 files changed, 16 insertions, 6 deletions

diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
index 8c7af1777819..4ccec4cd1367 100644
--- a/fs/partitions/msdos.c
+++ b/fs/partitions/msdos.c
@@ -63,15 +63,25 @@ msdos_magic_present(unsigned char *p)
 #define AIX_LABEL_MAGIC4        0xC1
 static int aix_magic_present(unsigned char *p, struct block_device *bdev)
 {
+        struct partition *pt = (struct partition *) (p + 0x1be);
         Sector sect;
         unsigned char *d;
-        int ret = 0;
+        int slot, ret = 0;
 
-        if (p[0] != AIX_LABEL_MAGIC1 &&
-                p[1] != AIX_LABEL_MAGIC2 &&
-                p[2] != AIX_LABEL_MAGIC3 &&
-                p[3] != AIX_LABEL_MAGIC4)
+        if (!(p[0] == AIX_LABEL_MAGIC1 &&
+                p[1] == AIX_LABEL_MAGIC2 &&
+                p[2] == AIX_LABEL_MAGIC3 &&
+                p[3] == AIX_LABEL_MAGIC4))
                 return 0;
+        /* Assume the partition table is valid if Linux partitions exists */
+        for (slot = 1; slot <= 4; slot++, pt++) {
+                if (pt->sys_ind == LINUX_SWAP_PARTITION ||
+                        pt->sys_ind == LINUX_RAID_PARTITION ||
+                        pt->sys_ind == LINUX_DATA_PARTITION ||
+                        pt->sys_ind == LINUX_LVM_PARTITION ||
+                        is_extended_partition(pt))
+                        return 0;
+        }
         d = read_dev_sector(bdev, 7, &sect);
         if (d) {
                 if (d[0] == '_' && d[1] == 'L' && d[2] == 'V' && d[3] == 'M')
@@ -155,7 +165,7 @@ parse_extended(struct parsed_partitions *state, struct block_device *bdev,
 
                         put_partition(state, state->next, next, size);
                         if (SYS_IND(p) == LINUX_RAID_PARTITION)
-                                state->parts[state->next].flags = 1;
+                                state->parts[state->next].flags = ADDPART_FLAG_RAID;
                         loopct = 0;
                         if (++state->next == state->limit)
                                 goto done;