diff options
| author | Olaf Hering <olaf@aepfle.de> | 2015-12-15 01:01:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-15 04:12:21 +0100 |
| commit | cdc0c0c94e4e6dfa371d497a3130f83349b6ead6 (patch) | |
| tree | 4fe6bd6427ac2cb354cc3655bc4e21ccf57965ed /drivers/hv/hv_utils_transport.c | |
| parent | tools: hv: remove repeated HV_FCOPY string (diff) | |
| download | linux-cdc0c0c94e4e6dfa371d497a3130f83349b6ead6.tar.xz linux-cdc0c0c94e4e6dfa371d497a3130f83349b6ead6.zip | |
Drivers: hv: util: catch allocation errors
Catch allocation errors in hvutil_transport_send.
Fixes: 14b50f80c32d ('Drivers: hv: util: introduce hv_utils_transport abstraction')
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/hv_utils_transport.c')
| -rw-r--r-- | drivers/hv/hv_utils_transport.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c index 6a9d80a5332d..1505ee6e6605 100644 --- a/drivers/hv/hv_utils_transport.c +++ b/drivers/hv/hv_utils_transport.c @@ -204,9 +204,12 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len) goto out_unlock; } hvt->outmsg = kzalloc(len, GFP_KERNEL); - memcpy(hvt->outmsg, msg, len); - hvt->outmsg_len = len; - wake_up_interruptible(&hvt->outmsg_q); + if (hvt->outmsg) { + memcpy(hvt->outmsg, msg, len); + hvt->outmsg_len = len; + wake_up_interruptible(&hvt->outmsg_q); + } else + ret = -ENOMEM; out_unlock: mutex_unlock(&hvt->outmsg_lock); return ret; |