[SPARC64]: Minor bug fix to obp_read_memory().
If we end up zero'ing out the size of one of the entries,
pop it out of the array completely because some code that
examines these things cannot handle a zero length element
properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 45a70d6..9d2b0da 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -102,8 +102,6 @@
prom_halt();
}
- *num_ents = ents;
-
/* Sanitize what we got from the firmware, by page aligning
* everything.
*/
@@ -125,6 +123,25 @@
regs[i].phys_addr = base;
regs[i].reg_size = size;
}
+
+ for (i = 0; i < ents; i++) {
+ if (regs[i].reg_size == 0UL) {
+ int j;
+
+ for (j = i; j < ents - 1; j++) {
+ regs[j].phys_addr =
+ regs[j+1].phys_addr;
+ regs[j].reg_size =
+ regs[j+1].reg_size;
+ }
+
+ ents--;
+ i--;
+ }
+ }
+
+ *num_ents = ents;
+
sort(regs, ents, sizeof(struct linux_prom64_registers),
cmp_p64, NULL);
}