Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c441baa0365ea7c3be9ee79f03e944289dd37e1
Commit:     3c441baa0365ea7c3be9ee79f03e944289dd37e1
Parent:     9c37f3329ae098d4c17e8bec589a589bcbf0acff
Author:     David Woodhouse <[EMAIL PROTECTED]>
AuthorDate: Sun Oct 28 21:57:02 2007 -0400
Committer:  David Woodhouse <[EMAIL PROTECTED]>
CommitDate: Sun Oct 28 21:57:02 2007 -0400

    [MTD] Skip bad blocks when checking for RedBoot partition table
    
    Signed-off-by: David Woodhouse <[EMAIL PROTECTED]>
---
 drivers/mtd/redboot.c |   25 ++++++++++++++++++++-----
 1 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index a61351f..4747490 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -59,16 +59,31 @@ static int parse_redboot_partitions(struct mtd_info *master,
        static char nullstring[] = "unallocated";
 #endif
 
+       if ( directory < 0 ) {
+               offset = master->size + directory * master->erasesize;
+               while (master->block_isbad && 
+                      master->block_isbad(master, offset)) {
+                       if (!offset) {
+                       nogood:
+                               printk(KERN_NOTICE "Failed to find a non-bad 
block to check for RedBoot partition table\n");
+                               return -EIO;
+                       }
+                       offset -= master->erasesize;
+               }
+       } else {
+               offset = directory * master->erasesize;
+               while (master->block_isbad && 
+                      master->block_isbad(master, offset)) {
+                       offset += master->erasesize;
+                       if (offset == master->size)
+                               goto nogood;
+               }
+       }
        buf = vmalloc(master->erasesize);
 
        if (!buf)
                return -ENOMEM;
 
-       if ( directory < 0 )
-               offset = master->size + directory*master->erasesize;
-       else
-               offset = directory*master->erasesize;
-
        printk(KERN_NOTICE "Searching for RedBoot partition table in %s at 
offset 0x%lx\n",
               master->name, offset);
 
-
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