Change in coreboot[master]: soc/intel/apollolake: Fix Coverity Error

[Hannah Williams (Code Review)]

Hannah Williams has uploaded this change for review. ( https://review.coreboot.org/20867

Change subject: soc/intel/apollolake: Fix Coverity Error
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soc/intel/apollolake: Fix Coverity Error

Change-Id: Ib7e43b195357c723e1ae51f609a8b07ad984380a
Signed-off-by: Hannah Williams 
---
M src/soc/intel/apollolake/cse.c
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/20867/1

diff --git a/src/soc/intel/apollolake/cse.c b/src/soc/intel/apollolake/cse.c
index 515d32b..3e1792c 100644
--- a/src/soc/intel/apollolake/cse.c
+++ b/src/soc/intel/apollolake/cse.c
@@ -92,6 +92,10 @@
    	return 0;
    }

+	if (strnlen(path, sizeof(msg.file_name)) >= sizeof(msg.file_name)) {
+		printk(BIOS_ERR, "path too big for msg.file_name buffer\n");
+		return 0;
+	}
    strncpy(msg.file_name, path, sizeof(msg.file_name));
    msg.mkhi_hdr.fields.group_id = MKHI_GROUP_ID_MCA;
    msg.mkhi_hdr.fields.command = READ_FILE;