Samuel Thibault
2008-Nov-10 01:22 UTC
[Xen-devel] [stubdom]: fix xenstore VM parameters read
stubdom: fix xenstore VM parameters read
For now, stub domains can not read the uuid, and thus
xenstore_vm_key_path fails(). We have to cope with that instead of
passing NULL to xs_read().
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
diff --git a/xenstore.c b/xenstore.c
index d064df1..e7e0df5 100644
--- a/xenstore.c
+++ b/xenstore.c
@@ -1124,6 +1124,8 @@ char *xenstore_vm_read(int domid, char *key, unsigned int
*len)
char *path = NULL, *value = NULL;
path = xenstore_vm_key_path(domid, key);
+ if (!path)
+ return NULL;
value = xs_read(xsh, XBT_NULL, path, len);
if (value == NULL) {
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Samuel Thibault
2008-Nov-10 01:54 UTC
[Xen-devel] [PATCH] [stubdom]: fix xenstore VM parameters read
I forgot the [PATCH] prefix to get Keir''s attention :)
Samuel Thibault, le Mon 10 Nov 2008 02:22:23 +0100, a écrit :
stubdom: fix xenstore VM parameters read
For now, stub domains can not read the uuid, and thus
xenstore_vm_key_path fails(). We have to cope with that instead of
passing NULL to xs_read().
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
diff --git a/xenstore.c b/xenstore.c
index d064df1..e7e0df5 100644
--- a/xenstore.c
+++ b/xenstore.c
@@ -1124,6 +1124,8 @@ char *xenstore_vm_read(int domid, char *key, unsigned int
*len)
char *path = NULL, *value = NULL;
path = xenstore_vm_key_path(domid, key);
+ if (!path)
+ return NULL;
value = xs_read(xsh, XBT_NULL, path, len);
if (value == NULL) {
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