Le 15/09/2021 à 12:36, Dan Carpenter a écrit :
This is writing to the first 1 - 3 bytes of "len" and then writing all
four bytes to musb_writel(). The last byte is always going to be
garbage. Zero out the last bytes instead.
Fixes: 550a7375fe72 ("USB: Add MUSB and TUSB support")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/usb/musb/tusb6010.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index c42937692207..c510fb84faa6 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -190,6 +190,7 @@ tusb_fifo_write_unaligned(void __iomem *fifo, const u8 *buf, u16 len)
}
if (len > 0) {
/* Write the rest 1 - 3 bytes to FIFO */
+ len = 0;
+ val = 0;
?
memcpy(&val, buf, len);
musb_writel(fifo, 0, val);
}
CJ
