[PATCH] remoteproc: imx_rproc: Fix NULL vs IS_ERR() bug in imx_rproc_addr_init()

[Chen Ni]

The devm_ioremap_resource_wc() function never returns NULL, it returns
error pointers.  Update the error checking to match.

Fixes: 67a7bc7f0358 ("remoteproc: Use of_reserved_mem_region_* functions for 
"memory-region"")
Signed-off-by: Chen Ni <nic...@iscas.ac.cn>
---
 drivers/remoteproc/imx_rproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index d33d1e2c41a4..0dd80e688b0e 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -812,7 +812,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
 
                /* Not use resource version, because we might share region */
                priv->mem[b].cpu_addr = devm_ioremap_resource_wc(&pdev->dev, 
&res);
-               if (!priv->mem[b].cpu_addr) {
+               if (IS_ERR(priv->mem[b].cpu_addr)) {
                        dev_err(dev, "failed to remap %pr\n", &res);
                        return -ENOMEM;
                }
-- 
2.25.1