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author | Heinrich Schuchardt | 2022-10-03 09:47:51 +0200 |
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committer | Heinrich Schuchardt | 2022-10-06 22:54:57 +0200 |
commit | 16b27b67c5002c13d84bdf68727954ec765f0731 (patch) | |
tree | 46ab97420a9d4e14769d941a2feb5fabbfb2fb76 /lib/efi_loader/efi_helper.c | |
parent | 874490c7ec7a05a429b951720f11a3b966ec0572 (diff) |
efi_loader: function to unlink udevice and handle
When deleting a device or a handle we must remove the link between the two
to avoid dangling references.
Provide function efi_unlink_dev() for this purpose.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Diffstat (limited to 'lib/efi_loader/efi_helper.c')
-rw-r--r-- | lib/efi_loader/efi_helper.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_helper.c b/lib/efi_loader/efi_helper.c index 8ed564e2619..c71e87d1180 100644 --- a/lib/efi_loader/efi_helper.c +++ b/lib/efi_loader/efi_helper.c @@ -171,3 +171,22 @@ int efi_link_dev(efi_handle_t handle, struct udevice *dev) handle->dev = dev; return dev_tag_set_ptr(dev, DM_TAG_EFI, handle); } + +/** + * efi_unlink_dev() - unlink udevice and handle + * + * @handle: EFI handle to unlink + * + * Return: 0 on success, negative on failure + */ +int efi_unlink_dev(efi_handle_t handle) +{ + int ret; + + ret = dev_tag_del(handle->dev, DM_TAG_EFI); + if (ret) + return ret; + handle->dev = NULL; + + return 0; +} |