efi_selftest: reduce noise in test output for device trees

Some messages are only useful if an error occurs.
Fix a use after free.
Add a missing free.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/lib/efi_selftest/efi_selftest_devicepath.c b/lib/efi_selftest/efi_selftest_devicepath.c
index 2f8f3c7..92940c7 100644 (file)
--- a/lib/efi_selftest/efi_selftest_devicepath.c
+++ b/lib/efi_selftest/efi_selftest_devicepath.c
@@ -319,7 +319,6 @@ static int execute(void)
                efi_st_error("FreePool failed\n");
                return EFI_ST_FAILURE;
        }
-       efi_st_printf("\n");
 
        /* Test ConvertDevicePathToText */
        string = device_path_to_text->convert_device_path_to_text(
@@ -328,15 +327,14 @@ static int execute(void)
                efi_st_error("ConvertDevicePathToText failed\n");
                return EFI_ST_FAILURE;
        }
-       efi_st_printf("dp2: %ps\n", string);
        if (efi_st_strcmp_16_8(
                string,
                "/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbb1)/VenHw(dbca4c98-6cb0-694d-0872-819c650cbba2)")
            ) {
+               efi_st_printf("dp2: %ps\n", string);
                efi_st_error("Incorrect text from ConvertDevicePathToText\n");
                return EFI_ST_FAILURE;
        }
-
        ret = boottime->free_pool(string);
        if (ret != EFI_SUCCESS) {
                efi_st_error("FreePool failed\n");
@@ -350,17 +348,17 @@ static int execute(void)
                efi_st_error("ConvertDeviceNodeToText failed\n");
                return EFI_ST_FAILURE;
        }
-       efi_st_printf("dp_node: %ps\n", string);
-       ret = boottime->free_pool(string);
-       if (ret != EFI_SUCCESS) {
-               efi_st_error("FreePool failed\n");
-               return EFI_ST_FAILURE;
-       }
        if (efi_st_strcmp_16_8(string, "u-boot")) {
+               efi_st_printf("dp_node: %ps\n", string);
                efi_st_error(
                        "Incorrect conversion by ConvertDeviceNodeToText\n");
                return EFI_ST_FAILURE;
        }
+       ret = boottime->free_pool(string);
+       if (ret != EFI_SUCCESS) {
+               efi_st_error("FreePool failed\n");
+               return EFI_ST_FAILURE;
+       }
 
        /* Test LocateDevicePath */
        remaining_dp = (struct efi_device_path *)dp3;
@@ -380,13 +378,18 @@ static int execute(void)
                efi_st_error("ConvertDevicePathToText failed\n");
                return EFI_ST_FAILURE;
        }
-       efi_st_printf("remaining device path: %ps\n", string);
        if (efi_st_strcmp_16_8(string,
                               "/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbc3)")
            ) {
+               efi_st_printf("remaining device path: %ps\n", string);
                efi_st_error("LocateDevicePath: wrong remaining device path\n");
                return EFI_ST_FAILURE;
        }
+       ret = boottime->free_pool(string);
+       if (ret != EFI_SUCCESS) {
+               efi_st_error("FreePool failed\n");
+               return EFI_ST_FAILURE;
+       }
 
        return EFI_ST_SUCCESS;
 }