afs: unmapping the wrong buffer

PATCH New Dan Carpenter 1 participant 1 message Oct 12, 2016

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Dan Carpenter

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2016-10-12 06:09 UTC #0 lore raw

PATCH 1/1 afs: unmapping the wrong buffer

We switched from kmap_atomic() to kmap() so the kunmap() calls need to be updated to match.

Fixes d001648ec7cf ('rxrpc: Don't expose skbs to in-kernel users [ver #2]')

Signed-off-by Dan Carpenter <[email protected]>

fs/afs/fsclient.c +2 -2

index 96f4d76..31c616a 100644
@@ -364,7 +364,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
 			buffer = kmap(page);
 			ret = afs_extract_data(call, buffer,
 					       call->count, true);
-			kunmap(buffer);
+			kunmap(page);
 			if (ret < 0)
 				return ret;
 		}

@@ -397,7 +397,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
 		page = call->reply3;
 		buffer = kmap(page);
 		memset(buffer + call->count, 0, PAGE_SIZE - call->count);
-		kunmap(buffer);
+		kunmap(page);
 	}
 
 	_leave(" = 0 [done]");