[PATCH 2/2] block: do not BUG() on failed block_get

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It does not necessarily means a bug when block_get fails here,
this can also be a failure on the underlying device.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 common/block.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/block.c b/common/block.c
index 437dc95..5983171 100644
--- a/common/block.c
+++ b/common/block.c
@@ -245,7 +245,7 @@ static int block_put(struct block_device *blk, const void *buf, int block)
 
 	data = block_get(blk, block);
 	if (IS_ERR(data))
-		BUG();
+		return PTR_ERR(data);
 
 	memcpy(data, buf, 1 << blk->blockbits);
 
-- 
1.7.10


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