[ Upstream commit a5112277872a56017b777770e2fd4324d4a6c866 ] The kzalloc here was being used without checking the return - if the kzalloc fails return VCHIQ_ERROR. The call-site of vchiq_platform_init_state() vchiq_init_state() was not responding to an allocation failure so checks for != VCHIQ_SUCCESS and pass VCHIQ_ERROR up to vchiq_platform_init() which then will fail with -EINVAL. Signed-off-by: Nicholas Mc Guire <hofrat@xxxxxxxxx> Reported-by: kbuild test robot <lkp@xxxxxxxxx> Acked-By: Stefan Wahren <stefan.wahren@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- .../staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c | 3 +++ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index dd4898861b833..eb1e5dcb0d529 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -209,6 +209,9 @@ vchiq_platform_init_state(struct vchiq_state *state) struct vchiq_2835_state *platform_state; state->platform_state = kzalloc(sizeof(*platform_state), GFP_KERNEL); + if (!state->platform_state) + return VCHIQ_ERROR; + platform_state = (struct vchiq_2835_state *)state->platform_state; platform_state->inited = 1; diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index 53f5a1cb4636e..819813e742d8a 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -2239,6 +2239,8 @@ vchiq_init_state(struct vchiq_state *state, struct vchiq_slot_zero *slot_zero) local->debug[DEBUG_ENTRIES] = DEBUG_MAX; status = vchiq_platform_init_state(state); + if (status != VCHIQ_SUCCESS) + return VCHIQ_ERROR; /* bring up slot handler thread -- 2.20.1
