[PATCH v10 13/18] media: venus: hfi_venus: fix variable dereferenced before check

From: Stanimir Varbanov
Date: Mon Jun 12 2017 - 12:32:15 EST


This fixes a warning found when building with gcc7:

drivers/media/platform/qcom/venus/hfi_venus.c:998
venus_isr_thread() warn: variable dereferenced before check
'hdev' (see line 994)

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx>
---
drivers/media/platform/qcom/venus/hfi_venus.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index ab209f3d9498..1caae8feaa36 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -991,13 +991,14 @@ static void venus_process_msg_sys_error(struct venus_hfi_device *hdev,
static irqreturn_t venus_isr_thread(struct venus_core *core)
{
struct venus_hfi_device *hdev = to_hfi_priv(core);
- const struct venus_resources *res = hdev->core->res;
+ const struct venus_resources *res;
void *pkt;
u32 msg_ret;

if (!hdev)
return IRQ_NONE;

+ res = hdev->core->res;
pkt = hdev->pkt_buf;

if (hdev->irq_status & WRAPPER_INTR_STATUS_A2HWD_MASK) {
--
2.7.4