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staging: vc04_services: handle kzalloc failure

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[ Upstream commit a511227787 ]

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@osadl.org>
Reported-by: kbuild test robot <lkp@intel.com>
Acked-By: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicholas Mc Guire 2019-04-19 01:31:08 +02:00 committed by Greg Kroah-Hartman
parent 355673f808
commit e0b75a7986
2 changed files with 5 additions and 0 deletions
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3
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
View file

@ -208,6 +208,9 @@ vchiq_platform_init_state(VCHIQ_STATE_T *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;

2
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
View file

@ -2537,6 +2537,8 @@ vchiq_init_state(VCHIQ_STATE_T *state, VCHIQ_SLOT_ZERO_T *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