diff options
Diffstat (limited to 'src/lib/boot_device.c')
| -rw-r--r-- | src/lib/boot_device.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/lib/boot_device.c b/src/lib/boot_device.c index 42fe5dfd35..e7968f4fa9 100644 --- a/src/lib/boot_device.c +++ b/src/lib/boot_device.c @@ -20,18 +20,30 @@ void __attribute__((weak)) boot_device_init(void) /* Provide weak do-nothing init. */ } +static int boot_device_subregion(const struct region *sub, + struct region_device *subrd, + const struct region_device *parent) +{ + if (parent == NULL) + return -1; + + return rdev_chain(subrd, parent, region_offset(sub), region_sz(sub)); +} + int boot_device_ro_subregion(const struct region *sub, struct region_device *subrd) { - const struct region_device *boot_dev; - /* Ensure boot device has been initialized at least once. */ boot_device_init(); - boot_dev = boot_device_ro(); + return boot_device_subregion(sub, subrd, boot_device_ro()); +} - if (boot_dev == NULL) - return -1; +int boot_device_rw_subregion(const struct region *sub, + struct region_device *subrd) +{ + /* Ensure boot device has been initialized at least once. */ + boot_device_init(); - return rdev_chain(subrd, boot_dev, region_offset(sub), region_sz(sub)); + return boot_device_subregion(sub, subrd, boot_device_rw()); } |