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[Qemu-devel] [PATCH v3 3/4] 9pfs: add cleanup operation for handle backe
From: |
Li Qiang |
Subject: |
[Qemu-devel] [PATCH v3 3/4] 9pfs: add cleanup operation for handle backend driver |
Date: |
Wed, 16 Nov 2016 22:16:55 -0500 |
In the init operation of handle backend dirver, it allocates a
handle_data struct and opens a mount file. We should free these
resources when the 9pfs device is unrealized. This is what this
patch does.
Signed-off-by: Li Qiang <address@hidden>
---
hw/9pfs/9p-handle.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c
index 3d77594..1687661 100644
--- a/hw/9pfs/9p-handle.c
+++ b/hw/9pfs/9p-handle.c
@@ -649,6 +649,14 @@ out:
return ret;
}
+static void handle_cleanup(FsContext *ctx)
+{
+ struct handle_data *data = ctx->private;
+
+ close(data->mountfd);
+ g_free(data);
+}
+
static int handle_parse_opts(QemuOpts *opts, struct FsDriverEntry *fse)
{
const char *sec_model = qemu_opt_get(opts, "security_model");
@@ -671,6 +679,7 @@ static int handle_parse_opts(QemuOpts *opts, struct
FsDriverEntry *fse)
FileOperations handle_ops = {
.parse_opts = handle_parse_opts,
.init = handle_init,
+ .cleanup = handle_cleanup,
.lstat = handle_lstat,
.readlink = handle_readlink,
.close = handle_close,
--
1.8.3.1