diff options
Diffstat (limited to 'package/utils/nvram/src/nvram.c')
| -rw-r--r-- | package/utils/nvram/src/nvram.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/package/utils/nvram/src/nvram.c b/package/utils/nvram/src/nvram.c index 0e1c726837..c4bcb1d4a6 100644 --- a/package/utils/nvram/src/nvram.c +++ b/package/utils/nvram/src/nvram.c @@ -364,7 +364,12 @@ nvram_handle_t * nvram_open(const char *file, int rdonly) if( mmap_area != MAP_FAILED ) { - for( i = 0; i <= ((nvram_part_size - NVRAM_SPACE) / sizeof(uint32_t)); i++ ) + /* + * Start looking for NVRAM_MAGIC at beginning of MTD + * partition. Stop if there is less than NVRAM_MIN_SPACE + * to check, that was the lowest used size. + */ + for( i = 0; i <= ((nvram_part_size - NVRAM_MIN_SPACE) / sizeof(uint32_t)); i++ ) { if( ((uint32_t *)mmap_area)[i] == NVRAM_MAGIC ) { |