Merge branch 'master' of git://git.denx.de/u-boot-sunxi

[oweals/u-boot.git] / lib / efi_loader / efi_boottime.c

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 887baaab02640dce95da855d697776de75455721..971bd5ffa3e96f19beef17e2bb758dadfb197250 100644 (file)
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -181,10 +181,12 @@ static void efi_queue_event(struct efi_event *event, bool check_tpl)
                /* Check TPL */
                if (check_tpl && efi_tpl >= event->notify_tpl)
                        return;
+               event->is_queued = false;
                EFI_CALL_VOID(event->notify_function(event,
                                                     event->notify_context));
+       } else {
+               event->is_queued = false;
        }
-       event->is_queued = false;
 }
 
 /**
@@ -513,10 +515,8 @@ efi_status_t efi_remove_protocol(const efi_handle_t handle,
        ret = efi_search_protocol(handle, protocol, &handler);
        if (ret != EFI_SUCCESS)
                return ret;
-       if (guidcmp(handler->guid, protocol))
-               return EFI_INVALID_PARAMETER;
        if (handler->protocol_interface != protocol_interface)
-               return EFI_INVALID_PARAMETER;
+               return EFI_NOT_FOUND;
        list_del(&handler->link);
        free(handler);
        return EFI_SUCCESS;
@@ -1916,10 +1916,17 @@ static efi_status_t EFIAPI efi_exit_boot_services(efi_handle_t image_handle,
 static efi_status_t EFIAPI efi_get_next_monotonic_count(uint64_t *count)
 {
        static uint64_t mono;
+       efi_status_t ret;
 
        EFI_ENTRY("%p", count);
+       if (!count) {
+               ret = EFI_INVALID_PARAMETER;
+               goto out;
+       }
        *count = mono++;
-       return EFI_EXIT(EFI_SUCCESS);
+       ret = EFI_SUCCESS;
+out:
+       return EFI_EXIT(ret);
 }
 
 /**
@@ -2261,7 +2268,7 @@ static efi_status_t EFIAPI efi_locate_device_path(
 
        EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
 
-       if (!protocol || !device_path || !*device_path || !device) {
+       if (!protocol || !device_path || !*device_path) {
                ret = EFI_INVALID_PARAMETER;
                goto out;
        }
@@ -2294,6 +2301,10 @@ static efi_status_t EFIAPI efi_locate_device_path(
                /* Check if dp is a subpath of device_path */
                if (memcmp(*device_path, dp, len_dp))
                        continue;
+               if (!device) {
+                       ret = EFI_INVALID_PARAMETER;
+                       goto out;
+               }
                *device = handles[i];
                len_best = len_dp;
        }
@@ -2330,6 +2341,7 @@ efi_status_t EFIAPI efi_install_multiple_protocol_interfaces
        efi_va_list argptr;
        const efi_guid_t *protocol;
        void *protocol_interface;
+       efi_handle_t old_handle;
        efi_status_t r = EFI_SUCCESS;
        int i = 0;
 
@@ -2342,6 +2354,17 @@ efi_status_t EFIAPI efi_install_multiple_protocol_interfaces
                if (!protocol)
                        break;
                protocol_interface = efi_va_arg(argptr, void*);
+               /* Check that a device path has not been installed before */
+               if (!guidcmp(protocol, &efi_guid_device_path)) {
+                       struct efi_device_path *dp = protocol_interface;
+
+                       r = EFI_CALL(efi_locate_device_path(protocol, &dp,
+                                                           &old_handle));
+                       if (r == EFI_SUCCESS) {
+                               r = EFI_ALREADY_STARTED;
+                               break;
+                       }
+               }
                r = EFI_CALL(efi_install_protocol_interface(
                                                handle, protocol,
                                                EFI_NATIVE_INTERFACE,
@@ -2449,9 +2472,16 @@ static efi_status_t EFIAPI efi_calculate_crc32(const void *data,
                                               efi_uintn_t data_size,
                                               u32 *crc32_p)
 {
+       efi_status_t ret = EFI_SUCCESS;
+
        EFI_ENTRY("%p, %zu", data, data_size);
+       if (!data || !data_size || !crc32_p) {
+               ret = EFI_INVALID_PARAMETER;
+               goto out;
+       }
        *crc32_p = crc32(0, data, data_size);
-       return EFI_EXIT(EFI_SUCCESS);
+out:
+       return EFI_EXIT(ret);
 }
 
 /**