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LLD: stm32f4: change type of i to signed integer

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this was causing infinite loop, when size of the
data was not multiple of 4.

Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>
This commit is contained in:
Amir Hammad 2015-04-06 16:01:20 +02:00
parent f86aacc59c
commit 0827b6982b
1 changed files with 3 additions and 2 deletions
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5
src/usbh_lld_stm32f4.c
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@ -341,15 +341,16 @@ static void stm32f4_usbh_write(void *drvdata, const usbh_packet_t *packet)
volatile uint32_t *fifo = &REBASE_CH(OTG_FIFO, channel) + RX_FIFO_SIZE;
const uint32_t * buf32 = packet->data;
uint32_t i;
int i;
for(i = packet->datalen; i > 0; i-=4) {
*fifo++ = *buf32++;
}
} else {
volatile uint32_t *fifo = &REBASE_CH(OTG_FIFO, channel) +
RX_FIFO_SIZE + TX_NP_FIFO_SIZE;
const uint32_t * buf32 = packet->data;
uint32_t i;
int i;
for(i = packet->datalen; i > 0; i-=4) {
*fifo++ = *buf32++;
}