New Defects reported by Coverity Scan for NetBSD-i386-kernel

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Hi,


Please find the latest report on new defect(s) introduced to NetBSD-i386-kernel 
found with Coverity Scan.

Defect(s) Reported-by: Coverity Scan
Showing 2 of 2 defect(s)


** CID 1018042:  Division or modulo by zero  (DIVIDE_BY_ZERO)
/sys/external/bsd/compiler_rt/dist/lib/udivmoddi4.c: 67 in __udivmoddi4()
/sys/external/bsd/compiler_rt/dist/lib/udivmoddi4.c: 66 in __udivmoddi4()

** CID 1175795:  Unused pointer value  (UNUSED_VALUE)
/sys/arch/i386/i386/machdep.c: 1666 in cpu_setmcontext()


________________________________________________________________________________________________________
*** CID 1018042:  Division or modulo by zero  (DIVIDE_BY_ZERO)
/sys/external/bsd/compiler_rt/dist/lib/udivmoddi4.c: 67 in __udivmoddi4()
61                 /* K X
62                  * ---
63                  * 0 0
64                  */ 
65                 if (rem)
66                     *rem = n.s.high % d.s.low;
>>>     CID 1018042:  Division or modulo by zero  (DIVIDE_BY_ZERO)
>>>     In expression "n.s.high / d.s.low", division by expression "d.s.low" 
>>> which may be zero has undefined behavior.
67                 return n.s.high / d.s.low;
68             }
69             /* d.s.high != 0 */
70             if (n.s.low == 0)
71             {
72                 /* K 0
/sys/external/bsd/compiler_rt/dist/lib/udivmoddi4.c: 66 in __udivmoddi4()
60             {
61                 /* K X
62                  * ---
63                  * 0 0
64                  */ 
65                 if (rem)
>>>     CID 1018042:  Division or modulo by zero  (DIVIDE_BY_ZERO)
>>>     In expression "n.s.high % d.s.low" modulo by expression "d.s.low" which 
>>> may be zero has undefined behavior.
66                     *rem = n.s.high % d.s.low;
67                 return n.s.high / d.s.low;
68             }
69             /* d.s.high != 0 */
70             if (n.s.low == 0)
71             {

________________________________________________________________________________________________________
*** CID 1175795:  Unused pointer value  (UNUSED_VALUE)
/sys/arch/i386/i386/machdep.c: 1666 in cpu_setmcontext()
1660     
1661     int
1662     cpu_setmcontext(struct lwp *l, const mcontext_t *mcp, unsigned int 
flags)
1663     {
1664            struct trapframe *tf = l->l_md.md_regs;
1665            const __greg_t *gr = mcp->__gregs;
>>>     CID 1175795:  Unused pointer value  (UNUSED_VALUE)
>>>     Pointer "pcb" returned by "lwp_getpcb(l)" is never used.
1666            struct pcb *pcb = lwp_getpcb(l);
1667            struct proc *p = l->l_proc;
1668            int error;
1669     
1670            /* Restore register context, if any. */
1671            if ((flags & _UC_CPU) != 0) {


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