remoteproc: qcom: wcss: Fix return value check in q6v5_wcss_init_mmio()

In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.

Fixes: 0af65b9b915e ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210319094100.4185044-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index 71ec1a4..6f7d940 100644 (file)
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -829,8 +829,8 @@ static int q6v5_wcss_init_mmio(struct q6v5_wcss *wcss,
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qdsp6");
        wcss->reg_base = devm_ioremap(&pdev->dev, res->start,
                                      resource_size(res));
-       if (IS_ERR(wcss->reg_base))
-               return PTR_ERR(wcss->reg_base);
+       if (!wcss->reg_base)
+               return -ENOMEM;
 
        if (wcss->version == WCSS_IPQ8074) {
                res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rmb");