Messages in this thread Patch in this message | | | From | Jeffrey Hugo <> | Subject | [PATCH] bus: mhi: core: Fix check for syserr at power_up | Date | Fri, 12 Feb 2021 14:27:23 -0700 |
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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: e18d4e9fa79b ("bus: mhi: core: Handle syserr during power_up") Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> --- drivers/bus/mhi/core/pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c index 681960c..36ab7aa 100644 --- a/drivers/bus/mhi/core/pm.c +++ b/drivers/bus/mhi/core/pm.c @@ -1092,7 +1092,7 @@ 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; -- Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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