Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[linux-2.6-omap-h63xx.git] / drivers / mtd / cmdlinepart.c

diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index 6b8bb2e4dcfde7ca5dbf8cb6bd1f4abc13c78c6f..b44292abd9f7bd68c94228ac11200b3549dc1711 100644 (file)
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -9,7 +9,7 @@
  *
  * mtdparts=<mtddef>[;<mtddef]
  * <mtddef>  := <mtd-id>:<partdef>[,<partdef>]
- * <partdef> := <size>[@offset][<name>][ro]
+ * <partdef> := <size>[@offset][<name>][ro][lk]
  * <mtd-id>  := unique name used in mapping driver/device (mtd->name)
  * <size>    := standard linux memsize OR "-" to denote all remaining space
  * <name>    := '(' NAME ')'
@@ -42,7 +42,8 @@
 
 
 /* special size referring to all the remaining space in a partition */
-#define SIZE_REMAINING 0xffffffff
+#define SIZE_REMAINING UINT_MAX
+#define OFFSET_CONTINUOUS UINT_MAX
 
 struct cmdline_mtd_partition {
        struct cmdline_mtd_partition *next;
@@ -75,7 +76,7 @@ static struct mtd_partition * newpart(char *s,
 {
        struct mtd_partition *parts;
        unsigned long size;
-       unsigned long offset = 0;
+       unsigned long offset = OFFSET_CONTINUOUS;
        char *name;
        int name_len;
        unsigned char *extra_mem;
@@ -142,6 +143,13 @@ static struct mtd_partition * newpart(char *s,
                s += 2;
         }
 
+        /* if lk is found do NOT unlock the MTD partition*/
+        if (strncmp(s, "lk", 2) == 0)
+       {
+               mask_flags |= MTD_POWERUP_LOCK;
+               s += 2;
+        }
+
        /* test if more partitions are following */
        if (*s == ',')
        {
@@ -162,13 +170,12 @@ static struct mtd_partition * newpart(char *s,
                *num_parts = this_part + 1;
                alloc_size = *num_parts * sizeof(struct mtd_partition) +
                             extra_mem_size;
-               parts = kmalloc(alloc_size, GFP_KERNEL);
+               parts = kzalloc(alloc_size, GFP_KERNEL);
                if (!parts)
                {
                        printk(KERN_ERR ERRP "out of memory\n");
                        return NULL;
                }
-               memset(parts, 0, alloc_size);
                extra_mem = (unsigned char *)(parts + *num_parts);
        }
        /* enter this partition (offset will be calculated later if it is zero at this point) */
@@ -314,7 +321,7 @@ static int parse_cmdline_partitions(struct mtd_info *master,
                {
                        for(i = 0, offset = 0; i < part->num_parts; i++)
                        {
-                               if (!part->parts[i].offset)
+                               if (part->parts[i].offset == OFFSET_CONTINUOUS)
                                  part->parts[i].offset = offset;
                                else
                                  offset = part->parts[i].offset;
@@ -345,7 +352,7 @@ static int parse_cmdline_partitions(struct mtd_info *master,
  *
  * This function needs to be visible for bootloaders.
  */
-int mtdpart_setup(char *s)
+static int mtdpart_setup(char *s)
 {
        cmdline = s;
        return 1;