[PATCH v2 2/5] usb: isp1760: fix qtd fill length
From: Rui Miguel Silva <rui.silva@linaro.org>
Date: 2021-08-27 13:12:16
Subsystem:
the rest, usb isp1760 driver, usb subsystem · Maintainers:
Linus Torvalds, Rui Miguel Silva, Greg Kroah-Hartman
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> Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> --- 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 b3a55c5d2155..fba21122bb00 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c@@ -1829,9 +1829,11 @@ 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;
--
2.33.0