Our current implementation of GetNextVariableName() first collects all EFI
variables. If none is found at all hexport_r() returns a zero length string
terminated by \0 and the value 1 as number of bytes in the returned buffer.
In this case GetNextVariableName() has to return EFI_NOT_FOUND.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
lib/efi_loader/efi_variable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
index 537006e50a..2a5b202881 100644
--- a/lib/efi_loader/efi_variable.c
+++ b/lib/efi_loader/efi_variable.c
@@ -356,7 +356,8 @@ efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t
*variable_name_size,
list_len = hexport_r(&env_htab, '\n',
H_MATCH_REGEX | H_MATCH_KEY,
&efi_variables_list, 0, 1, regexlist);
- if (list_len <= 0)
+ /* 1 indicates that no match was found */
+ if (list_len <= 1)
return EFI_EXIT(EFI_NOT_FOUND);
variable = efi_variables_list;
--
2.20.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
