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efi_loader: remove redundant statement

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ascii2unicode() always ends the u16 string with '\0'.
Remove redundant assignment.

Add description for efi_str_to_u16() and ascii2unicode().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-09-20 19:57:54 +02:00 • committed by Alexander Graf
parent 4e6b5d6503
commit 9d08f6db2a
2 changed files with 18 additions and 2 deletions
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10
lib/efi_loader/efi_device_path_to_text.c
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@ -17,6 +17,15 @@
const efi_guid_t efi_guid_device_path_to_text_protocol =
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
/**
* efi_str_to_u16() - convert ASCII string to UTF-16
*
* A u16 buffer is allocated from pool. The ASCII string is copied to the u16
* buffer.
*
* @str: ASCII string
* Return: UTF-16 string. NULL if out of memory.
*/
static u16 *efi_str_to_u16(char *str)
{
efi_uintn_t len;
@ -29,7 +38,6 @@ static u16 *efi_str_to_u16(char *str)
if (ret != EFI_SUCCESS)
return NULL;
ascii2unicode(out, str);
out[len - 1] = 0;
return out;
}