From: Bill Pemberton <wfp5p@virginia.edu>
Date: Wed, 5 May 2010 19:27:35 +0000 (-0400)
Subject: Staging: hv: remove ASSERT() in Channel.c
X-Git-Tag: firefly_0821_release~9833^2~2055^2^2~172
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d1c250bb5df9afb5af3f290d1006dfe601a51e2e;p=firefly-linux-kernel-4.4.55.git

Staging: hv: remove ASSERT() in Channel.c

check memory allocation in VmbusChannelCreateGpadlHeader() and
return -ENOMEM if it fails

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

diff --git a/drivers/staging/hv/Channel.c b/drivers/staging/hv/Channel.c
index 79c013b48170..2d8c086228cc 100644
--- a/drivers/staging/hv/Channel.c
+++ b/drivers/staging/hv/Channel.c
@@ -382,6 +382,8 @@ static int VmbusChannelCreateGpadlHeader(void *Kbuffer, u32 Size,
 			  sizeof(struct vmbus_channel_gpadl_header) +
 			  sizeof(struct gpa_range) + pfnCount * sizeof(u64);
 		msgHeader =  kzalloc(msgSize, GFP_KERNEL);
+		if (!msgHeader)
+			goto nomem;
 
 		INIT_LIST_HEAD(&msgHeader->SubMsgList);
 		msgHeader->MessageSize = msgSize;
@@ -416,7 +418,9 @@ static int VmbusChannelCreateGpadlHeader(void *Kbuffer, u32 Size,
 				  sizeof(struct vmbus_channel_gpadl_body) +
 				  pfnCurr * sizeof(u64);
 			msgBody = kzalloc(msgSize, GFP_KERNEL);
-			ASSERT(msgBody);
+			/* FIXME: we probably need to more if this fails */
+			if (!msgBody)
+				goto nomem;
 			msgBody->MessageSize = msgSize;
 			(*MessageCount)++;
 			gpadlBody =
@@ -459,6 +463,10 @@ static int VmbusChannelCreateGpadlHeader(void *Kbuffer, u32 Size,
 	}
 
 	return 0;
+nomem:
+	kfree(msgHeader);
+	kfree(msgBody);
+	return -ENOMEM;
 }
 
 /*