From 79d0636ac7f839d57680305a462f0d8ff9bb13ec Mon Sep 17 00:00:00 2001 From: Daniel Jurgens Date: Fri, 30 Jun 2017 17:35:35 +0300 Subject: [PATCH] IB/core: Fix uninitialized variable use in check_qp_port_pkey_settings Check the return value from get_pkey_and_subnet_prefix to prevent using uninitialized variables. Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs") Signed-off-by: Daniel Jurgens Reported-by: Dan Carpenter Signed-off-by: Paul Moore Signed-off-by: James Morris --- drivers/infiniband/core/security.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c index 3e8c38953912..70ad19c4c73e 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -120,21 +120,25 @@ static int check_qp_port_pkey_settings(struct ib_ports_pkeys *pps, return 0; if (pps->main.state != IB_PORT_PKEY_NOT_VALID) { - get_pkey_and_subnet_prefix(&pps->main, - &pkey, - &subnet_prefix); + ret = get_pkey_and_subnet_prefix(&pps->main, + &pkey, + &subnet_prefix); + if (ret) + return ret; ret = enforce_qp_pkey_security(pkey, subnet_prefix, sec); + if (ret) + return ret; } - if (ret) - return ret; if (pps->alt.state != IB_PORT_PKEY_NOT_VALID) { - get_pkey_and_subnet_prefix(&pps->alt, - &pkey, - &subnet_prefix); + ret = get_pkey_and_subnet_prefix(&pps->alt, + &pkey, + &subnet_prefix); + if (ret) + return ret; ret = enforce_qp_pkey_security(pkey, subnet_prefix,