[PULL,12/38] hw/smbios: Fix leaked fd in save_opt_one() error path

Commit Message

Michael S. Tsirkin Nov. 3, 2020, 2:34 p.m. UTC

From: Philippe Mathieu-Daudé <[e-mail]>

Fix the following Coverity issue (RESOURCE_LEAK):

  CID 1432879: Resource leak

    Handle variable fd going out of scope leaks the handle.

Replace a close() call by qemu_close() since the handle is
opened with qemu_open().

Fixes: bb99f4772f5 ("hw/smbios: support loading OEM strings values from a file")
Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Message-Id: <[e-mail]>
Reviewed-by: Stefano Garzarella <[e-mail]>
Reviewed-by: Laszlo Ersek <[e-mail]>
Reviewed-by: Michael S. Tsirkin <[e-mail]>
Signed-off-by: Michael S. Tsirkin <[e-mail]>
---
 hw/smbios/smbios.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index 8b30906e50..6a3d39793b 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -988,16 +988,18 @@  static int save_opt_one(void *opaque,
             if (ret < 0) {
                 error_setg(errp, "Unable to read from %s: %s",
                            value, strerror(errno));
+                qemu_close(fd);
                 return -1;
             }
             if (memchr(buf, '\0', ret)) {
                 error_setg(errp, "NUL in OEM strings value in %s", value);
+                qemu_close(fd);
                 return -1;
             }
             g_byte_array_append(data, (guint8 *)buf, ret);
         }
 
-        close(fd);
+        qemu_close(fd);
 
         *opt->dest = g_renew(char *, *opt->dest, (*opt->ndest) + 1);
         (*opt->dest)[*opt->ndest] = (char *)g_byte_array_free(data,  FALSE);