diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-06-02 01:43:33 +0200 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-06-04 22:09:26 +0200 |
| commit | 66ca24a9a05aa094bcdcf0784d8cc5911dc2f725 (patch) | |
| tree | 5df5ae7b5ca71edab5d6535045a7d5f0c8786b8d /lib | |
| parent | 8a802a2eefd36865eaa3d927d1db7af63bb2d922 (diff) | |
efi_loader: DisconnectController() with no driver
If DisconnectController() is called and no driver is managing
ControllerHandle, return EFI_SUCCESS.
UEFI SCT II 2017, 3.3.12 DisconnectController(), 5.1.3.12.4 - 5.1.3.12.6
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 54fff85e64..027bd6d4d3 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -1134,11 +1134,15 @@ static efi_status_t efi_get_drivers(efi_handle_t handle, ++count; } } + *number_of_drivers = 0; + if (!count) { + *driver_handle_buffer = NULL; + return EFI_SUCCESS; + } /* * Create buffer. In case of duplicate driver assignments the buffer * will be too large. But that does not harm. */ - *number_of_drivers = 0; *driver_handle_buffer = calloc(count, sizeof(efi_handle_t)); if (!*driver_handle_buffer) return EFI_OUT_OF_RESOURCES; @@ -1194,7 +1198,8 @@ static efi_status_t efi_disconnect_all_drivers &driver_handle_buffer); if (ret != EFI_SUCCESS) return ret; - + if (!number_of_drivers) + return EFI_SUCCESS; ret = EFI_NOT_FOUND; while (number_of_drivers) { r = EFI_CALL(efi_disconnect_controller( |