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staging: bcm2708_vchiq: fix return value check in vchiq_init_state() 

In case of error, the function kthread_create() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wei Yongjun 2016-10-17 15:05:36 +00:00 committed by Greg Kroah-Hartman
parent b04451d7df
commit d298ec6580
1 changed files with 3 additions and 3 deletions
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6
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
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@ -2440,7 +2440,7 @@ vchiq_init_state(VCHIQ_STATE_T *state, VCHIQ_SLOT_ZERO_T *slot_zero,
(void *)state,
threadname);
if (state->slot_handler_thread == NULL) {
if (IS_ERR(state->slot_handler_thread)) {
vchiq_loud_error_header();
vchiq_loud_error("couldn't create thread %s", threadname);
vchiq_loud_error_footer();
@ -2453,7 +2453,7 @@ vchiq_init_state(VCHIQ_STATE_T *state, VCHIQ_SLOT_ZERO_T *slot_zero,
state->recycle_thread = kthread_create(&recycle_func,
(void *)state,
threadname);
if (state->recycle_thread == NULL) {
if (IS_ERR(state->recycle_thread)) {
vchiq_loud_error_header();
vchiq_loud_error("couldn't create thread %s", threadname);
vchiq_loud_error_footer();
@ -2466,7 +2466,7 @@ vchiq_init_state(VCHIQ_STATE_T *state, VCHIQ_SLOT_ZERO_T *slot_zero,
state->sync_thread = kthread_create(&sync_func,
(void *)state,
threadname);
if (state->sync_thread == NULL) {
if (IS_ERR(state->sync_thread)) {
vchiq_loud_error_header();
vchiq_loud_error("couldn't create thread %s", threadname);
vchiq_loud_error_footer();