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[v3,09/10] tcg: check return value of fopen()

Message ID 1407398512-20780-10-git-send-email-zhang.zhanghailiang@huawei.com
State New
Headers show

Commit Message

Zhanghailiang Aug. 7, 2014, 8:01 a.m. UTC 
From: Li Liu <john.liuli@huawei.com>

Give a warning message if fopen() failed to open the log file.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Liu <john.liuli@huawei.com>
---
 tcg/tcg.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/tcg/tcg.c b/tcg/tcg.c
index c068990..8f50d2a 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2406,6 +2406,10 @@  static void dump_op_count(void)
     int i;
     FILE *f;
     f = fopen("/tmp/op.log", "w");
+    if (f == NULL) {
+        fprintf(stderr, "Failed to open /tmp/op.log\n");
+        return;
+    }
     for(i = INDEX_op_end; i < NB_OPS; i++) {
         fprintf(f, "%s %" PRId64 "\n", tcg_op_defs[i].name, tcg_table_op_count[i]);
     }