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[LMB]: Fix lmb_add_region if region should be added at the head

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We introduced a bug in fixing lmb_add_region to handle an initial
region being non-zero.  Before that fix it was impossible to insert a
region at the head of the list since the first region always started
at zero.

Now that its possible for the first region to be non-zero we need to
check to see if the new region should be added at the head and if so
actually add it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kumar Gala 2008-02-19 21:28:18 -08:00 • committed by David S. Miller
parent e5f2709543
commit 74b20dad1c
1 changed files with 5 additions and 0 deletions
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5
lib/lmb.c
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@ -184,6 +184,11 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
break; break;
} }
} }
if (base < rgn->region[0].base) {
rgn->region[0].base = base;
rgn->region[0].size = size;
}
rgn->cnt++; rgn->cnt++;
return 0; return 0;