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efi_loader: SetMode() parameters check

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If EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode() is called with an invalid mode,
return EFI_UNSUPPORTED.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-06-15 12:58:30 +02:00
parent 997c2ce5cf
commit 1f7a8b3389
1 changed files with 5 additions and 3 deletions
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8
lib/efi_loader/efi_gop.c
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@ -60,12 +60,14 @@ out:
static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
{
efi_status_t ret = EFI_SUCCESS;
EFI_ENTRY("%p, %x", this, mode_number);
if (mode_number != 0)
return EFI_EXIT(EFI_INVALID_PARAMETER);
if (mode_number)
ret = EFI_UNSUPPORTED;
return EFI_EXIT(EFI_SUCCESS);
return EFI_EXIT(ret);
}
static __always_inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid)