From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Elder Subject: [PATCH 02/12] soc: qcom: smem: initialize region struct only when successful Date: Tue, 1 May 2018 20:10:09 -0500 Message-ID: <20180502011019.22812-3-elder@linaro.org> References: <20180502011019.22812-1-elder@linaro.org> Return-path: In-Reply-To: <20180502011019.22812-1-elder@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: andy.gross@linaro.org Cc: clew@codeaurora.org, aneela@codeaurora.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org Hold off initializing anything for the array entry representing a memory region in qcom_smem_map_memory() until we know we've successfully mapped it. Signed-off-by: Alex Elder --- drivers/soc/qcom/smem.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index c46bb43c0f3d..d8008bf480a4 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -887,6 +887,7 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev, { struct device_node *np; struct resource r; + resource_size_t size; int ret; np = of_parse_phandle(dev->of_node, name, 0); @@ -899,12 +900,13 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev, of_node_put(np); if (ret) return ret; + size = resource_size(&r); - smem->regions[i].aux_base = (u32)r.start; - smem->regions[i].size = resource_size(&r); - smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, resource_size(&r)); + smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, size); if (!smem->regions[i].virt_base) return -ENOMEM; + smem->regions[i].aux_base = (u32)r.start; + smem->regions[i].size = size; return 0; } -- 2.14.1