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MicroVAX2: Properly limit Qbus Map Register Access (COVERITY)

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This commit is contained in:
Mark Pizzolato 2017-03-10 10:49:40 -08:00
parent 75a2ced795
commit 44587a17c5
1 changed files with 2 additions and 2 deletions
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4
VAX/vax630_io.c
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@ -490,7 +490,7 @@ t_bool qba_map_addr (uint32 qa, uint32 *ma)
{ {
int32 qblk = (qa >> VA_V_VPN); /* Qbus blk */ int32 qblk = (qa >> VA_V_VPN); /* Qbus blk */
if (qblk <= QBNMAPR) { if (qblk < QBNMAPR) {
int32 qmap = qb_map[qblk]; int32 qmap = qb_map[qblk];
if (qmap & QBMAP_VLD) { /* valid? */ if (qmap & QBMAP_VLD) { /* valid? */
*ma = ((qmap & QBMAP_PAG) << VA_V_VPN) + VA_GETOFF (qa); *ma = ((qmap & QBMAP_PAG) << VA_V_VPN) + VA_GETOFF (qa);
@ -512,7 +512,7 @@ t_bool qba_map_addr_c (uint32 qa, uint32 *ma)
{ {
int32 qblk = (qa >> VA_V_VPN); /* Qbus blk */ int32 qblk = (qa >> VA_V_VPN); /* Qbus blk */
if (qblk <= QBNMAPR) { if (qblk < QBNMAPR) {
int32 qmap = qb_map[qblk]; int32 qmap = qb_map[qblk];
if (qmap & QBMAP_VLD) { /* valid? */ if (qmap & QBMAP_VLD) { /* valid? */
*ma = ((qmap & QBMAP_PAG) << VA_V_VPN) + VA_GETOFF (qa); *ma = ((qmap & QBMAP_PAG) << VA_V_VPN) + VA_GETOFF (qa);