[PATCH] arm64: zynqmp: Fix return code from do_zynqmp_pmufw()

[Michal Simek]

zynqmp_pmufw_node() can also return values like -ENODEV which means that
NODE has been already configured that's why don't propagate this error
code.

Signed-off-by: Michal Simek <michal.simek at amd.com>
---

The same technique was used on power domain driver by this patch
https://lore.kernel.org/r/20230523124215.30915-3-stefan.herbrechtsmeier-oss@weidmueller.com

---
 board/xilinx/zynqmp/cmds.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index 9d375b075501..930592ffb5c1 100644
--- a/board/xilinx/zynqmp/cmds.c
+++ b/board/xilinx/zynqmp/cmds.c
@@ -211,6 +211,7 @@ static int do_zynqmp_pmufw(struct cmd_tbl *cmdtp, int flag, int argc,
 
 	if (!strncmp(argv[2], "node", 4)) {
 		u32 id;
+		int ret;
 
 		if (!strncmp(argv[3], "close", 5))
 			return zynqmp_pmufw_config_close();
@@ -223,7 +224,11 @@ static int do_zynqmp_pmufw(struct cmd_tbl *cmdtp, int flag, int argc,
 
 		printf("Enable permission for node ID %d\n", id);
 
-		return zynqmp_pmufw_node(id);
+		ret = zynqmp_pmufw_node(id);
+		if (ret == -ENODEV)
+			ret = 0;
+
+		return ret;
 	}
 
 	addr = hextoul(argv[2], NULL);
-- 
2.36.1