uninitilized variables with -O1

[Takahiro HAYASHI <t.hash425%gmail.com@localhost>]

gcc points out two uninitialized variables while building current
amd64 kernel with makeoptions COPTS="-O1 -fno-omit-frame-pointer",
but does not complain about these with "-O2 -fno-omit-frame-pointer".

BTW we should check if initial values are correct.

Index: src/sys/arch/x86/x86/sys_machdep.c
===================================================================
RCS file: /cvsroot/src/sys/arch/x86/x86/sys_machdep.c,v
retrieving revision 1.27
diff -u -p -r1.27 sys_machdep.c
--- src/sys/arch/x86/x86/sys_machdep.c  20 Mar 2014 20:44:42 -0000      1.27
+++ src/sys/arch/x86/x86/sys_machdep.c  31 Mar 2014 11:41:17 -0000
@@ -659,7 +659,7 @@ x86_set_sdbase(void *arg, char which, lw
 #else
        struct pcb *pcb;
        vaddr_t base;
-       int error;
+       int error = 0;
 
 	if (l->l_proc->p_flag & PK_32) {
                return x86_set_sdbase32(arg, which, l, direct);
Index: src/sys/dev/usb/xhci.c
===================================================================
RCS file: /cvsroot/src/sys/dev/usb/xhci.c,v
retrieving revision 1.16
diff -u -p -r1.16 xhci.c
--- src/sys/dev/usb/xhci.c      10 Mar 2014 13:21:22 -0000      1.16
+++ src/sys/dev/usb/xhci.c      31 Mar 2014 11:59:04 -0000
@@ -356,7 +356,7 @@ xhci_db_write_4(const struct xhci_softc
 static inline uint8_t
 xhci_ep_get_type(usb_endpoint_descriptor_t * const ed)
 {
-       u_int eptype;
+       u_int eptype = 0;
 
 	switch (UE_GET_XFERTYPE(ed->bmAttributes)) {
        case UE_CONTROL:

--
t-hash