From: Yang Yingliang <yangyingliang@xxxxxxxxxx> [ Upstream commit 165b7643f2df890066b1b4e8a387888a600ca9bf ] If devm_of_iomap() fails, it returns ERR_PTR() and never return NULL, so replace NULL pointer check with IS_ERR() to fix this problem. Fixes: 5a6338cce9f4 ("mailbox: arm_mhuv2: Add driver") Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/mailbox/arm_mhuv2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mailbox/arm_mhuv2.c b/drivers/mailbox/arm_mhuv2.c index a47aef8df52f..c6d4957c4da8 100644 --- a/drivers/mailbox/arm_mhuv2.c +++ b/drivers/mailbox/arm_mhuv2.c @@ -1062,8 +1062,8 @@ static int mhuv2_probe(struct amba_device *adev, const struct amba_id *id) int ret = -EINVAL; reg = devm_of_iomap(dev, dev->of_node, 0, NULL); - if (!reg) - return -ENOMEM; + if (IS_ERR(reg)) + return PTR_ERR(reg); mhu = devm_kzalloc(dev, sizeof(*mhu), GFP_KERNEL); if (!mhu) -- 2.35.1 ) state = ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE; if (!IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch) || - ctx->current_codec == V4L2_PIX_FMT_VP8_FRAME || ret) { + ctx->current_codec == V4L2_PIX_FMT_VP8_FRAME) { v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx, state); if (src_buf_req) v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); -- 2.35.1