From: Douglas Anderson dianders@chromium.org
stable inclusion from stable-v6.6.7 commit 9b4a883854355e822f727ac4777b9170a62bac18 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8SSQ4
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 79321a793945fdbff2f405f84712d0ab81bed287 ]
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 r8153_aldps_en().
Fixes: 4214cc550bf9 ("r8152: check if disabling ALDPS is finished") Reviewed-by: Grant Grundler grundler@chromium.org Signed-off-by: Douglas Anderson dianders@chromium.org Acked-by: Hayes Wang hayeswang@realtek.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- 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 4393ffd3b294..7611c406fdb9 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -5770,6 +5770,8 @@ static void r8153_aldps_en(struct r8152 *tp, bool enable) data &= ~EN_ALDPS; ocp_reg_write(tp, OCP_POWER_CFG, data); for (i = 0; i < 20; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; usleep_range(1000, 2000); if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100) break;