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path: root/drivers/mtd/cmdlinepart.c
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Diffstat (limited to 'drivers/mtd/cmdlinepart.c')
-rw-r--r--drivers/mtd/cmdlinepart.c91
1 files changed, 48 insertions, 43 deletions
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index aed1b8a63c9f..c533f27d863f 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -56,8 +56,8 @@
/* special size referring to all the remaining space in a partition */
-#define SIZE_REMAINING UINT_MAX
-#define OFFSET_CONTINUOUS UINT_MAX
+#define SIZE_REMAINING ULLONG_MAX
+#define OFFSET_CONTINUOUS ULLONG_MAX
struct cmdline_mtd_partition {
struct cmdline_mtd_partition *next;
@@ -89,7 +89,7 @@ static struct mtd_partition * newpart(char *s,
int extra_mem_size)
{
struct mtd_partition *parts;
- unsigned long size, offset = OFFSET_CONTINUOUS;
+ unsigned long long size, offset = OFFSET_CONTINUOUS;
char *name;
int name_len;
unsigned char *extra_mem;
@@ -104,7 +104,8 @@ static struct mtd_partition * newpart(char *s,
} else {
size = memparse(s, &s);
if (size < PAGE_SIZE) {
- printk(KERN_ERR ERRP "partition size too small (%lx)\n", size);
+ printk(KERN_ERR ERRP "partition size too small (%llx)\n",
+ size);
return ERR_PTR(-EINVAL);
}
}
@@ -296,7 +297,7 @@ static int parse_cmdline_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
{
- unsigned long offset;
+ unsigned long long offset;
int i, err;
struct cmdline_mtd_partition *part;
const char *mtd_id = master->name;
@@ -308,48 +309,52 @@ static int parse_cmdline_partitions(struct mtd_info *master,
return err;
}
+ /*
+ * Search for the partition definition matching master->name.
+ * If master->name is not set, stop at first partition definition.
+ */
for (part = partitions; part; part = part->next) {
- if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id))) {
- for (i = 0, offset = 0; i < part->num_parts; i++) {
- if (part->parts[i].offset == OFFSET_CONTINUOUS)
- part->parts[i].offset = offset;
- else
- offset = part->parts[i].offset;
-
- if (part->parts[i].size == SIZE_REMAINING)
- part->parts[i].size = master->size - offset;
-
- if (part->parts[i].size == 0) {
- printk(KERN_WARNING ERRP
- "%s: skipping zero sized partition\n",
- part->mtd_id);
- part->num_parts--;
- memmove(&part->parts[i],
- &part->parts[i + 1],
- sizeof(*part->parts) * (part->num_parts - i));
- continue;
- }
-
- if (offset + part->parts[i].size > master->size) {
- printk(KERN_WARNING ERRP
- "%s: partitioning exceeds flash size, truncating\n",
- part->mtd_id);
- part->parts[i].size = master->size - offset;
- }
- offset += part->parts[i].size;
- }
-
- *pparts = kmemdup(part->parts,
- sizeof(*part->parts) * part->num_parts,
- GFP_KERNEL);
- if (!*pparts)
- return -ENOMEM;
-
- return part->num_parts;
+ if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id)))
+ break;
+ }
+
+ if (!part)
+ return 0;
+
+ for (i = 0, offset = 0; i < part->num_parts; i++) {
+ if (part->parts[i].offset == OFFSET_CONTINUOUS)
+ part->parts[i].offset = offset;
+ else
+ offset = part->parts[i].offset;
+
+ if (part->parts[i].size == SIZE_REMAINING)
+ part->parts[i].size = master->size - offset;
+
+ if (part->parts[i].size == 0) {
+ printk(KERN_WARNING ERRP
+ "%s: skipping zero sized partition\n",
+ part->mtd_id);
+ part->num_parts--;
+ memmove(&part->parts[i], &part->parts[i + 1],
+ sizeof(*part->parts) * (part->num_parts - i));
+ continue;
}
+
+ if (offset + part->parts[i].size > master->size) {
+ printk(KERN_WARNING ERRP
+ "%s: partitioning exceeds flash size, truncating\n",
+ part->mtd_id);
+ part->parts[i].size = master->size - offset;
+ }
+ offset += part->parts[i].size;
}
- return 0;
+ *pparts = kmemdup(part->parts, sizeof(*part->parts) * part->num_parts,
+ GFP_KERNEL);
+ if (!*pparts)
+ return -ENOMEM;
+
+ return part->num_parts;
}