From 35dfa3efea635c41cc5be1cf48dcc96b295964cd Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jonathan=20Neusch=C3=A4fer?= Date: Wed, 5 Apr 2017 14:10:48 +0200 Subject: [PATCH] soc: qcom: smsm: Improve error handling, quiesce probe deferral MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Don't use size if info indicates an error condition. Previously a non-ENOENT error (such as -EPROBE_DEFER) would lead to size being used even though it hadn't necessarily been initialized in qcom_smem_get. Don't print an error message in the -EPROBE_DEFER case. Signed-off-by: Jonathan Neuschäfer Reviewed-by: Bjorn Andersson Signed-off-by: Andy Gross --- drivers/soc/qcom/smsm.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/soc/qcom/smsm.c b/drivers/soc/qcom/smsm.c index d0337b2a71c8..dc540ea92e9d 100644 --- a/drivers/soc/qcom/smsm.c +++ b/drivers/soc/qcom/smsm.c @@ -439,14 +439,15 @@ static int smsm_get_size_info(struct qcom_smsm *smsm) } *info; info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_SMSM_SIZE_INFO, &size); - if (PTR_ERR(info) == -ENOENT || size != sizeof(*info)) { + if (IS_ERR(info) && PTR_ERR(info) != -ENOENT) { + if (PTR_ERR(info) != -EPROBE_DEFER) + dev_err(smsm->dev, "unable to retrieve smsm size info\n"); + return PTR_ERR(info); + } else if (IS_ERR(info) || size != sizeof(*info)) { dev_warn(smsm->dev, "no smsm size info, using defaults\n"); smsm->num_entries = SMSM_DEFAULT_NUM_ENTRIES; smsm->num_hosts = SMSM_DEFAULT_NUM_HOSTS; return 0; - } else if (IS_ERR(info)) { - dev_err(smsm->dev, "unable to retrieve smsm size info\n"); - return PTR_ERR(info); } smsm->num_entries = info->num_entries; -- 2.20.1