A warning reported by smatch indicated a possible null pointer dereference where one of the arguments to API "iris_hfi_gen2_handle_system_error" could sometimes be null.
To fix this, add a check to validate that the argument passed is not null before accessing its members.
Cc: stable@vger.kernel.org Fixes: fb583a214337 ("media: iris: introduce host firmware interface with necessary hooks") Reported-by: Dan Carpenter dan.carpenter@linaro.org Closes: https://lore.kernel.org/linux-media/634cc9b8-f099-4b54-8556-d879fb2b5169@sta... Acked-by: Vikash Garodia quic_vgarodia@quicinc.com Reviewed-by: Bryan O'Donoghue bryan.odonoghue@linaro.org Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8550-QRD Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8550-HDK Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8650-QRD Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8650-HDK Signed-off-by: Dikshita Agarwal quic_dikshita@quicinc.com --- drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c index d1a2a497a7b2e6a1a810f2acf7d8d6f332d3d63d..4488540d1d410b58af02ab82a3238ccbe40f7093 100644 --- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c @@ -265,7 +265,8 @@ static int iris_hfi_gen2_handle_system_error(struct iris_core *core, { struct iris_inst *instance;
- dev_err(core->dev, "received system error of type %#x\n", pkt->type); + if (pkt) + dev_err(core->dev, "received system error of type %#x\n", pkt->type);
core->state = IRIS_CORE_ERROR;