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authorVitaly Kuznetsov <vkuznets@redhat.com>2015-12-14 19:01:53 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-14 19:27:30 -0800
commit1f75338b6fece2bbd42ac3623830c65e2df6e031 (patch)
tree0dcff9f8b0d5735ba80efe160bc3faaecf470e2a /drivers/hv
parenta689d2510f188e75391dbebacbddfd74d42f2a7e (diff)
downloadlinux-1f75338b6fece2bbd42ac3623830c65e2df6e031.tar.bz2
Drivers: hv: utils: fix memory leak on on_msg() failure
inmsg should be freed in case of on_msg() failure to avoid memory leak. Preserve the error code from on_msg(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv_utils_transport.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c
index 24b2766a6d34..40abe44fcd98 100644
--- a/drivers/hv/hv_utils_transport.c
+++ b/drivers/hv/hv_utils_transport.c
@@ -77,6 +77,7 @@ static ssize_t hvt_op_write(struct file *file, const char __user *buf,
{
struct hvutil_transport *hvt;
u8 *inmsg;
+ int ret;
hvt = container_of(file->f_op, struct hvutil_transport, fops);
@@ -84,11 +85,11 @@ static ssize_t hvt_op_write(struct file *file, const char __user *buf,
if (IS_ERR(inmsg))
return PTR_ERR(inmsg);
- if (hvt->on_msg(inmsg, count))
- return -EFAULT;
+ ret = hvt->on_msg(inmsg, count);
+
kfree(inmsg);
- return count;
+ return ret ? ret : count;
}
static unsigned int hvt_op_poll(struct file *file, poll_table *wait)