target/linux/generic/patches-3.3/421-redboot_boardconfig.patch

   1 --- a/drivers/mtd/redboot.c
   2 +++ b/drivers/mtd/redboot.c
   3 @@ -30,6 +30,8 @@
   4  #include <linux/mtd/partitions.h>
   5  #include <linux/module.h>
   6
   7 +#define BOARD_CONFIG_PART              "boardconfig"
   8 +
   9  struct fis_image_desc {
  10      unsigned char name[16];      // Null terminated name
  11      uint32_t     flash_base;    // Address within FLASH of image
  12 @@ -60,6 +62,7 @@ static int parse_redboot_partitions(stru
  13                                     struct mtd_partition **pparts,
  14                                     struct mtd_part_parser_data *data)
  15  {
  16 +       unsigned long max_offset = 0;
  17         int nrparts = 0;
  18         struct fis_image_desc *buf;
  19         struct mtd_partition *parts;
  20 @@ -227,14 +230,14 @@ static int parse_redboot_partitions(stru
  21                 }
  22         }
  23  #endif
  24 -       parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
  25 +       parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
  26
  27         if (!parts) {
  28                 ret = -ENOMEM;
  29                 goto out;
  30         }
  31
  32 -       nullname = (char *)&parts[nrparts];
  33 +       nullname = (char *)&parts[nrparts + 1];
  34  #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
  35         if (nulllen > 0) {
  36                 strcpy(nullname, nullstring);
  37 @@ -253,6 +256,8 @@ static int parse_redboot_partitions(stru
  38         }
  39  #endif
  40         for ( ; i<nrparts; i++) {
  41 +               if(max_offset < buf[i].flash_base + buf[i].size)
  42 +                       max_offset = buf[i].flash_base + buf[i].size;
  43                 parts[i].size = fl->img->size;
  44                 parts[i].offset = fl->img->flash_base;
  45                 parts[i].name = names;
  46 @@ -286,6 +291,14 @@ static int parse_redboot_partitions(stru
  47                 fl = fl->next;
  48                 kfree(tmp_fl);
  49         }
  50 +       if(master->size - max_offset >= master->erasesize)
  51 +       {
  52 +               parts[nrparts].size = master->size - max_offset;
  53 +               parts[nrparts].offset = max_offset;
  54 +               parts[nrparts].name = names;
  55 +               strcpy(names, BOARD_CONFIG_PART);
  56 +               nrparts++;
  57 +       }
  58         ret = nrparts;
  59         *pparts = parts;
  60   out: