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Subject[PATCH -next] staging: bcm2708_vchiq: fix return value check in vchiq_init_state()
Date
From: Wei Yongjun <weiyongjun1@huawei.com>

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>
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

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 2c98da4..8cb43f5 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -2494,7 +2494,7 @@ 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();
@@ -2507,7 +2507,7 @@ 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();
@@ -2520,7 +2520,7 @@ 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();
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