From: Michal Simek <michal.simek@xilinx.com>
Date: Wed, 21 Oct 2020 10:16:02 +0000 (+0200)
Subject: xilinx: zynqmp: Check return value from xilinx_pm_request()
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=d026aa1de3330face74ccecb265bcfe722bcd20a;p=u-boot.git

xilinx: zynqmp: Check return value from xilinx_pm_request()

xilinx_pm_request() can failed that's why also check return value.

Fixes: 050f10f103cd ("xilinx: zynqmp: remove chip_id function")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index db3f5978a9..e658245408 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -192,7 +192,11 @@ static char *zynqmp_get_silicon_idcode_name(void)
 	u32 ret_payload[PAYLOAD_ARG_CNT];
 	int ret;
 
-	xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0, ret_payload);
+	ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0, ret_payload);
+	if (ret) {
+		debug("%s: Getting chipid failed\n", __func__);
+		return "unknown";
+	}
 
 	/*
 	 * Firmware returns: