diff options
| -rw-r--r-- | sys/src/9/pc/sdmv50xx.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sys/src/9/pc/sdmv50xx.c b/sys/src/9/pc/sdmv50xx.c index 5ebb6d6fd..a48264d89 100644 --- a/sys/src/9/pc/sdmv50xx.c +++ b/sys/src/9/pc/sdmv50xx.c @@ -1131,8 +1131,9 @@ static SDev* mv50pnp(void) { int i, nunit; + ulong n, *mem; uchar *base; - ulong io, n, *mem; + uvlong io; Ctlr *ctlr; Drive *d; Pcidev *p; @@ -1148,6 +1149,8 @@ mv50pnp(void) while((p = pcimatch(p, 0x11ab, 0)) != nil){ if(p->ccrb != Pcibcstore || p->ccru + p->ccrp || p->did&0x0f00) continue; + if(p->mem[0].size == 0 || (p->mem[0].bar & 1) != 0) + continue; switch(p->did){ case 0x5040: case 0x5041: @@ -1169,20 +1172,18 @@ mv50pnp(void) 'E' + ctlrno, (ushort)p->did, nunit, ((p->did&0xf000)==0x6000? "II": "I"), (p->did&1? "": "out")); + io = p->mem[0].bar & ~0xF; + mem = (ulong*)vmap(io, p->mem[0].size); + if(mem == nil){ + print("sdmv50xx: can't map %llux\n", io); + continue; + } if((sdev = malloc(sizeof *sdev)) == nil) continue; if((ctlr = malloc(sizeof *ctlr)) == nil){ free(sdev); continue; } - io = p->mem[0].bar & ~0x0F; - mem = (ulong*)vmap(io, p->mem[0].size); - if(mem == 0){ - print("sdmv50xx: address 0x%luX in use\n", io); - free(sdev); - free(ctlr); - continue; - } ctlr->rid = p->rid; /* avert thine eyes! (what does this do?) */ |