From: Rui Miguel Silva rui.silva@linaro.org
[ Upstream commit cbfa3effdf5c2d411c9ce9820f3d33d77bc4697d ]
When trying to send bulks bigger than the biggest block size we need to split them over several qtd. Fix this limiting the maximum qtd size to largest block size.
Reported-by: Dietmar Eggemann dietmar.eggemann@arm.com Tested-by: Dietmar Eggemann dietmar.eggemann@arm.com Signed-off-by: Rui Miguel Silva rui.silva@linaro.org Link: https://lore.kernel.org/r/20210827131154.4151862-3-rui.silva@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/isp1760/isp1760-hcd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c index ffb3a0c8c909..d2d19548241e 100644 --- a/drivers/usb/isp1760/isp1760-hcd.c +++ b/drivers/usb/isp1760/isp1760-hcd.c @@ -1826,9 +1826,11 @@ static void packetize_urb(struct usb_hcd *hcd, goto cleanup;
if (len > mem->blocks_size[ISP176x_BLOCK_NUM - 1]) - len = mem->blocks_size[ISP176x_BLOCK_NUM - 1]; + this_qtd_len = mem->blocks_size[ISP176x_BLOCK_NUM - 1]; + else + this_qtd_len = len;
- this_qtd_len = qtd_fill(qtd, buf, len); + this_qtd_len = qtd_fill(qtd, buf, this_qtd_len); list_add_tail(&qtd->qtd_list, head);
len -= this_qtd_len;