efi_disk_register should return as status code (efi_status_t).
Disks with zero blocks should be reported as 'not ready' without throwing an error.
This patch solves a problem running OpenBSD on system configured with CONFIG_BLK=n (e.g. i.MX6).
Reported-by: Jonathan Gray jsg@jsg.id.au Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v2 remove superfluous check --- include/efi_loader.h | 2 +- lib/efi_loader/efi_disk.c | 71 +++++++++++++++++++++++++++++------------------ 2 files changed, 45 insertions(+), 28 deletions(-)
diff --git a/include/efi_loader.h b/include/efi_loader.h index a2d82e1db73..07730c3f394 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -173,7 +173,7 @@ extern struct list_head efi_obj_list; /* Called by bootefi to make console interface available */ int efi_console_register(void); /* Called by bootefi to make all disk storage accessible as EFI objects */ -int efi_disk_register(void); +efi_status_t efi_disk_register(void); /* Create handles and protocols for the partitions of a block device */ int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc, const char *if_typename, int diskid, diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index ac39a65ee89..825a6d86de8 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -226,25 +226,26 @@ efi_fs_from_path(struct efi_device_path *full_path) * @offset offset into disk for simple partitions * @return disk object */ -static struct efi_disk_obj *efi_disk_add_dev( +static efi_status_t efi_disk_add_dev( efi_handle_t parent, struct efi_device_path *dp_parent, const char *if_typename, struct blk_desc *desc, int dev_index, lbaint_t offset, - unsigned int part) + unsigned int part, + struct efi_disk_obj **disk) { struct efi_disk_obj *diskobj; efi_status_t ret;
/* Don't add empty devices */ if (!desc->lba) - return NULL; + return EFI_NOT_READY;
diskobj = calloc(1, sizeof(*diskobj)); if (!diskobj) - goto out_of_memory; + return EFI_OUT_OF_RESOURCES;
/* Hook up to the device list */ efi_add_handle(&diskobj->parent); @@ -262,11 +263,11 @@ static struct efi_disk_obj *efi_disk_add_dev( ret = efi_add_protocol(diskobj->parent.handle, &efi_block_io_guid, &diskobj->ops); if (ret != EFI_SUCCESS) - goto out_of_memory; + return ret; ret = efi_add_protocol(diskobj->parent.handle, &efi_guid_device_path, diskobj->dp); if (ret != EFI_SUCCESS) - goto out_of_memory; + return ret; if (part >= 1) { diskobj->volume = efi_simple_file_system(desc, part, diskobj->dp); @@ -274,7 +275,7 @@ static struct efi_disk_obj *efi_disk_add_dev( &efi_simple_file_system_protocol_guid, diskobj->volume); if (ret != EFI_SUCCESS) - goto out_of_memory; + return ret; } diskobj->ops = block_io_disk_template; diskobj->ifname = if_typename; @@ -291,10 +292,9 @@ static struct efi_disk_obj *efi_disk_add_dev( if (part != 0) diskobj->media.logical_partition = 1; diskobj->ops.media = &diskobj->media; - return diskobj; -out_of_memory: - printf("ERROR: Out of memory\n"); - return NULL; + if (disk) + *disk = diskobj; + return EFI_SUCCESS; }
/* @@ -330,8 +330,12 @@ int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc, continue; snprintf(devname, sizeof(devname), "%s:%d", pdevname, part); - efi_disk_add_dev(parent, dp, if_typename, desc, diskid, - info.start, part); + ret = efi_disk_add_dev(parent, dp, if_typename, desc, diskid, + info.start, part, NULL); + if (ret != EFI_SUCCESS) { + printf("Adding partition %s failed\n", pdevname); + continue; + } disks++; }
@@ -349,26 +353,32 @@ int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc, * * This gets called from do_bootefi_exec(). */ -int efi_disk_register(void) +efi_status_t efi_disk_register(void) { struct efi_disk_obj *disk; int disks = 0; + efi_status_t ret; #ifdef CONFIG_BLK struct udevice *dev;
- for (uclass_first_device_check(UCLASS_BLK, &dev); - dev; + for (uclass_first_device_check(UCLASS_BLK, &dev); dev; uclass_next_device_check(&dev)) { struct blk_desc *desc = dev_get_uclass_platdata(dev); const char *if_typename = blk_get_if_type_name(desc->if_type);
- printf("Scanning disk %s...\n", dev->name); - /* Add block device for the full device */ - disk = efi_disk_add_dev(NULL, NULL, if_typename, - desc, desc->devnum, 0, 0); - if (!disk) - return -ENOMEM; + printf("Scanning disk %s...\n", dev->name); + ret = efi_disk_add_dev(NULL, NULL, if_typename, + desc, desc->devnum, 0, 0, &disk); + if (ret == EFI_NOT_READY) { + printf("Disk %s not ready\n", dev->name); + continue; + } + if (ret) { + printf("ERROR: failure to add disk device %s, r = %lu\n", + dev->name, ret & ~EFI_ERROR_MASK); + return ret; + } disks++;
/* Partitions show up as block devices in EFI */ @@ -404,10 +414,17 @@ int efi_disk_register(void) if_typename, i);
/* Add block device for the full device */ - disk = efi_disk_add_dev(NULL, NULL, if_typename, desc, - i, 0, 0); - if (!disk) - return -ENOMEM; + ret = efi_disk_add_dev(NULL, NULL, if_typename, desc, + i, 0, 0, &disk); + if (ret == EFI_NOT_READY) { + printf("Disk %s not ready\n", devname); + continue; + } + if (ret) { + printf("ERROR: failure to add disk device %s, r = %lu\n", + devname, ret & ~EFI_ERROR_MASK); + return ret; + } disks++;
/* Partitions show up as block devices in EFI */ @@ -419,5 +436,5 @@ int efi_disk_register(void) #endif printf("Found %d disks\n", disks);
- return 0; + return EFI_SUCCESS; }