Revert "x86: fix ghost EDD devices in /sys again"
This reverts commit 464f04c9e9b3b1c4f5ffb89c51d8ba2a2034c846.
Obsoleted by commit 6cdcdb99cf7c2e1835fc5b471864d21161c3e679.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index 067e28c..1aae8f3 100644
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -32,9 +32,7 @@
: "+a" (ax), "+c" (cx), "+d" (dx), "+b" (bx)
: : "esi", "edi", "memory");
- /* Some BIOSes do not set carry flag on error but still return
- * error in AH. The condition below is expected to catch both */
- return -!!ax; /* 0 or -1 */
+ return -(u8)ax; /* 0 or -1 */
}
static u32 read_mbr_sig(u8 devno, struct edd_info *ei, u32 *mbrsig)