[PATCH v2 3/5] target/ppc: Add error reporting when opening file fails

[Daniel Henrique Barboza <danielhb413@gmail.com>]

From: jianchunfu <jianchunfu@cmss.chinamobile.com>

Add error reporting before return when opening file fails in
kvmppc_read_int_dt().

Signed-off-by: jianchunfu <jianchunfu@cmss.chinamobile.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[danielhb: use error_setg() instead of fprintf]
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 target/ppc/kvm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index bc17437097..7611e9ccf6 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -1896,7 +1896,7 @@ static int kvmppc_find_cpu_dt(char *buf, int buf_len)
     return 0;
 }
 
-static uint64_t kvmppc_read_int_dt(const char *filename)
+static uint64_t kvmppc_read_int_dt(const char *filename, Error **errp)
 {
     union {
         uint32_t v32;
@@ -1907,6 +1907,7 @@ static uint64_t kvmppc_read_int_dt(const char *filename)
 
     f = fopen(filename, "rb");
     if (!f) {
+        error_setg(errp, "Error opening %s: %s", filename, strerror(errno));
         return 0;
     }
 
@@ -1940,7 +1941,7 @@ static uint64_t kvmppc_read_int_cpu_dt(const char *propname, Error **errp)
     }
 
     tmp = g_strdup_printf("%s/%s", buf, propname);
-    val = kvmppc_read_int_dt(tmp);
+    val = kvmppc_read_int_dt(tmp, errp);
     g_free(tmp);
 
     return val;
-- 
2.36.1