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bus: mhi: core: Fix check for syserr at power_up

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commit 6403298c58d4858d93648f553abf0bcbd2dfaca2 upstream.

The check to see if we have reset the device after detecting syserr at
power_up is inverted.  wait_for_event_timeout() returns 0 on failure,
and a positive value on success.  The check is looking for non-zero
as a failure, which is likely to incorrectly cause a device init failure
if syserr was detected at power_up.  Fix this.

Fixes: e18d4e9fa7 ("bus: mhi: core: Handle syserr during power_up")
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1613165243-23359-1-git-send-email-jhugo@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeffrey Hugo 2021-02-12 14:27:23 -07:00 committed by Greg Kroah-Hartman
parent f53a3a4808
commit 542fd3e4fd
1 changed files with 1 additions and 1 deletions
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2
drivers/bus/mhi/core/pm.c
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@ -992,7 +992,7 @@ int mhi_async_power_up(struct mhi_controller *mhi_cntrl)
&val) ||
!val,
msecs_to_jiffies(mhi_cntrl->timeout_ms));
if (ret) {
if (!ret) {
ret = -EIO;
dev_info(dev, "Failed to reset MHI due to syserr state\n");
goto error_bhi_offset;