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-rw-r--r--drivers/dfu/dfu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index cccc044..1eb92e5 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -288,7 +288,7 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
dfu->offset = 0;
dfu->i_buf_end = dfu_get_buf() + dfu_buf_size;
dfu->i_buf = dfu->i_buf_start;
- dfu->b_left = 0;
+ dfu->b_left = min(dfu_buf_size, dfu->r_left);
dfu->bad_skip = 0;