arm64: zynqmp: Fix return code from do_zynqmp_pmufw()

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@amd.com>
Link: https://lore.kernel.org/r/e52d24d8d3efb276778d387dc716e4e065e0626f.1685618701.git.michal.simek@amd.com

diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index 9d375b075501b1936f2ea9ae00885e2362733953..930592ffb5c18b7fa3e7894fd5c357ec9bfdace8 100644 (file)
--- 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);