summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorAndrzej Hajda <a.hajda@samsung.com>2016-08-17 12:03:05 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2016-08-22 11:09:33 +1000
commit6096481649ac27466cf2b453f185b43f680bf541 (patch)
treec7711132e4e63561e52070d6049d3d3e5283f30c /arch
parent2dd9c11b9d4dfbd6c070eab7b81197f65e82f1a0 (diff)
powerpc/powernv/pci: fix iterator signedness
Unsigned type is always non-negative, so the loop could not end in case condition is never true. The problem has been detected using semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index fd9444f9fb0c..13218263e66e 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -149,7 +149,7 @@ static void pnv_ioda_reserve_pe(struct pnv_phb *phb, int pe_no)
static struct pnv_ioda_pe *pnv_ioda_alloc_pe(struct pnv_phb *phb)
{
- unsigned long pe = phb->ioda.total_pe_num - 1;
+ long pe;
for (pe = phb->ioda.total_pe_num - 1; pe >= 0; pe--) {
if (!test_and_set_bit(pe, phb->ioda.pe_alloc))