Messages in this thread Patch in this message | | | From | "K. Y. Srinivasan" <> | Subject | [PATCH RESEND 05/27] Drivers: hv: util: catch allocation errors | Date | Fri, 11 Dec 2015 20:21:25 -0800 |
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From: Olaf Hering <olaf@aepfle.de>
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> --- 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 6a9d80a..1505ee6 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; -- 1.7.4.1
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