[PATCH] remoteproc: k3: Fix NULL vs IS_ERR() bug in k3_reserved_mem_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/ti_k3_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/ti_k3_common.c 
b/drivers/remoteproc/ti_k3_common.c
index 32aa954dc5be..3cb8ae5d72f6 100644
--- a/drivers/remoteproc/ti_k3_common.c
+++ b/drivers/remoteproc/ti_k3_common.c
@@ -513,7 +513,7 @@ int k3_reserved_mem_init(struct k3_rproc *kproc)
                kproc->rmem[i].dev_addr = (u32)res.start;
                kproc->rmem[i].size = resource_size(&res);
                kproc->rmem[i].cpu_addr = devm_ioremap_resource_wc(dev, &res);
-               if (!kproc->rmem[i].cpu_addr) {
+               if (IS_ERR(kproc->rmem[i].cpu_addr)) {
                        dev_err(dev, "failed to map reserved memory#%d at 
%pR\n",
                                i + 1, &res);
                        return -ENOMEM;
-- 
2.25.1