[PATCH] hw/pci-host/piix: fix one file descriptor leak

[PATCH] hw/pci-host/piix: fix one file descriptor leak

[Tiejun Chen]

Commit 595a4f07d6bd (piix: create host bridge to passthrough)
introduced to leak of one file descriptor, "config_fd", now
just fix that.

CC: Michael S. Tsirkin <mst@redhat.com>
CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
---
 hw/pci-host/piix.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 1fb71c8..7d44228 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -775,15 +775,18 @@ static int host_pci_config_read(int pos, int len, uint32_t val)
     }
 
     if (lseek(config_fd, pos, SEEK_SET) != pos) {
+        close(config_fd);
         return -errno;
     }
     do {
         rc = read(config_fd, (uint8_t *)&val, len);
     } while (rc < 0 && (errno == EINTR || errno == EAGAIN));
     if (rc != len) {
+        close(config_fd);
         return -errno;
     }
 
+    close(config_fd);
     return 0;
 }
 
-- 
1.9.1