[PATCH 1/4] powerpc/eeh: fix pseries_eeh_configure_bridge()

[Sam Bobroff]

If a device is hot unplgged during EEH recovery, it's possible for the
RTAS call to ibm,configure-pe in pseries_eeh_configure() to return
parameter error (-3), however negative return values are not checked
for and this leads to an infinite loop.

Fix this by correctly bailing out on negative values.

Signed-off-by: Sam Bobroff <sbobroff at linux.ibm.com>
---
 arch/powerpc/platforms/pseries/eeh_pseries.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 893ba3f562c4..c4ef03bec0de 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -605,7 +605,7 @@ static int pseries_eeh_configure_bridge(struct eeh_pe *pe)
 				config_addr, BUID_HI(pe->phb->buid),
 				BUID_LO(pe->phb->buid));
 
-		if (!ret)
+		if (ret <= 0)
 			return ret;
 
 		/*
-- 
2.22.0.216.g00a2a96fc9