There is a possible memory leak in get_uuid(). Should free allocated mem
before 
return NULL.

Signed-off-by: Yifan Luo <luoyi...@cmss.chinamobile.com>
---
 pc-bios/s390-ccw/netmain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
index f3542cb2cf1..f2dcc01e272 100644
--- a/pc-bios/s390-ccw/netmain.c
+++ b/pc-bios/s390-ccw/netmain.c
@@ -269,6 +269,7 @@ static const char *get_uuid(void)
                  : "d" (r0), "d" (r1), [addr] "a" (buf)
                  : "cc", "memory");
     if (cc) {
+        free(mem);
         return NULL;
     }
 
-- 
2.21.0




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