staging: hv: Fix error checking in channel.c

Fixed errors in return value checking code, which caused vmbus channel
not functioning.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index 12c351e16360..f047c5a7f64c 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -204,13 +204,13 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
                                            RecvRingBufferSize) >> PAGE_SHIFT;
 
         ret = RingBufferInit(&NewChannel->Outbound, out, SendRingBufferSize);
-        if (!ret) {
+        if (ret != 0) {
                 err = ret;
                 goto errorout;
         }
 
         ret = RingBufferInit(&NewChannel->Inbound, in, RecvRingBufferSize);
-        if (!ret) {
+        if (ret != 0) {
                 err = ret;
                 goto errorout;
         }
@@ -228,7 +228,7 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
                                          RecvRingBufferSize,
                                          &NewChannel->RingBufferGpadlHandle);
 
-        if (!ret) {
+        if (ret != 0) {
                 err = ret;
                 goto errorout;
         }
@@ -569,7 +569,7 @@ int VmbusChannelEstablishGpadl(struct vmbus_channel *Channel, void *Kbuffer,
                         ret = VmbusPostMessage(gpadlBody,
                                                subMsgInfo->MessageSize -
                                                sizeof(*subMsgInfo));
-                        if (!ret)
+                        if (ret != 0)
                                 goto Cleanup;
 
                 }