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efi_loader: non-volatile variable not deleted from file

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When deleting a non-volatile variable it was deleted from memory but the
deletion was not persisted to the file system.

SetVariable() may be called with attributes == 0 to delete a variable. To
determine if the deletion shall be persisted we have to consider the
non-volatile flag in the attributes of the deleted variable and not the
value passed in the call parameter.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2020-11-02 19:32:24 +01:00
parent b055a05b98
commit ab02c3fec4
1 changed files with 1 additions and 0 deletions
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1
lib/efi_loader/efi_variable.c
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@ -393,6 +393,7 @@ efi_status_t efi_set_variable_int(u16 *variable_name, const efi_guid_t *vendor,
if (delete) { if (delete) {
/* EFI_NOT_FOUND has been handled before */ /* EFI_NOT_FOUND has been handled before */
attributes = var->attr;
ret = EFI_SUCCESS; ret = EFI_SUCCESS;
} else if (append) { } else if (append) {
u16 *old_data = var->name; u16 *old_data = var->name;