[PATCH 5.10 159/717] powerpc/powernv/sriov: fix unsigned int win compared to less than zero

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From: Kaixu Xia <kaixuxia@xxxxxxxxxxx>

[ Upstream commit 027717a45ca251a7ba67a63db359994836962cd2 ]

Fix coccicheck warning:

  arch/powerpc/platforms/powernv/pci-sriov.c:443:7-10:
  WARNING: Unsigned expression compared with zero: win < 0

  arch/powerpc/platforms/powernv/pci-sriov.c:462:7-10:
  WARNING: Unsigned expression compared with zero: win < 0

Fixes: 39efc03e3ee8 ("powerpc/powernv/sriov: Move M64 BAR allocation into a helper")
Reported-by: Tosk Robot <tencent_os_robot@xxxxxxxxxxx>
Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
Reviewed-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1605007170-22171-1-git-send-email-kaixuxia@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/powerpc/platforms/powernv/pci-sriov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci-sriov.c b/arch/powerpc/platforms/powernv/pci-sriov.c
index c4434f20f42fa..28aac933a4391 100644
--- a/arch/powerpc/platforms/powernv/pci-sriov.c
+++ b/arch/powerpc/platforms/powernv/pci-sriov.c
@@ -422,7 +422,7 @@ static int pnv_pci_vf_assign_m64(struct pci_dev *pdev, u16 num_vfs)
 {
 	struct pnv_iov_data   *iov;
 	struct pnv_phb        *phb;
-	unsigned int           win;
+	int                    win;
 	struct resource       *res;
 	int                    i, j;
 	int64_t                rc;
-- 
2.27.0






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