[PATCH 1/1] usb: Fix usb_control_msg() error path

[Philip Oberfichtner]

As pointed out in [1], there is a logic error in the -ETIMEDOUT return
path.

The while() condition evaluates false, when timeout is 0. Postfix
decrement makes it -1. Adapt the if statement accordingly.

Fixes: 2fc8638403c (usb: Assimilate usb_get_descriptor() to linux)
Signed-off-by: Philip Oberfichtner <pro at denx.de>

[1] https://lore.kernel.org/u-boot/caa9932c-c5dd-46d6-a5ae-120238300a73@linaro.org/
---
 common/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/usb.c b/common/usb.c
index 7a8435296c6..266339e4897 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -258,7 +258,7 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
 		mdelay(1);
 	}
 
-	if (timeout == 0)
+	if (timeout == -1)
 		return -ETIMEDOUT;
 
 	if (dev->status)
-- 
2.39.5