[PATCH 5.15 023/141] r8152: Add RTL8152_INACCESSIBLE to r8156b_wait_loading_flash()

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Douglas Anderson <dianders@xxxxxxxxxxxx>

[ Upstream commit 8a67b47fced9f6a84101eb9ec5ce4c7d64204bc7 ]

Delay loops in r8152 should break out if RTL8152_INACCESSIBLE is set
so that they don't delay too long if the device becomes
inaccessible. Add the break to the loop in
r8156b_wait_loading_flash().

Fixes: 195aae321c82 ("r8152: support new chips")
Reviewed-by: Grant Grundler <grundler@xxxxxxxxxxxx>
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Acked-by: Hayes Wang <hayeswang@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/usb/r8152.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 1bb304857a744..c4a3076bb2261 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -5396,6 +5396,8 @@ static void r8156b_wait_loading_flash(struct r8152 *tp)
 		int i;
 
 		for (i = 0; i < 100; i++) {
+			if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+				break;
 			if (ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL) & GPHY_PATCH_DONE)
 				break;
 			usleep_range(1000, 2000);
-- 
2.42.0







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