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usb: dfu: correct dfu buffer inited value

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After dfu buffer is initialized, the buffer should be all available,
while not 0. Initialize its value to min(dfu_buf_size, dfu->r_left).

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Bo Shen 2013-10-16 17:26:38 +08:00 committed by Marek Vasut
parent c2617bc773
commit 31bae4c5d9
1 changed files with 1 additions and 1 deletions
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2
drivers/dfu/dfu.c
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@ -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;