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[PULL,03/11] tests/bios-tables-test: check the value returned by fopen()

Message ID 1408887062-30022-4-git-send-email-mjt@msgid.tls.msk.ru
State New
Headers show

Commit Message

Michael Tokarev Aug. 24, 2014, 1:30 p.m. UTC 
From: zhanghailiang <zhang.zhanghailiang@huawei.com>

The function fopen() may fail, so check its return value.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Liu <john.liuli@huawei.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 tests/bios-tables-test.c |    5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 045eb27..602932b 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -790,6 +790,11 @@  int main(int argc, char *argv[])
     const char *arch = qtest_get_arch();
     FILE *f = fopen(disk, "w");
     int ret;
+
+    if (!f) {
+        fprintf(stderr, "Couldn't open \"%s\": %s", disk, strerror(errno));
+        return 1;
+    }
     fwrite(boot_sector, 1, sizeof boot_sector, f);
     fclose(f);