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usb: typec: ucsi: Ack also failed Get Error commands

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It is possible that also the GET_ERROR command fails. If
that happens, the command completion still needs to be
acknowledged. Otherwise the interface will be stuck until
it's reset.

Reported-by: Ammy Yi <ammy.yi@intel.com>
Fixes: bdc62f2bae8f ("usb: typec: ucsi: Simplified registration and I/O API")
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240531104653.1303519-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2024-05-31 13:46:52 +03:00 committed by Greg Kroah-Hartman
parent f85d39dd7e
commit 8bdf8a42bc
1 changed files with 6 additions and 1 deletions
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7
drivers/usb/typec/ucsi/ucsi.c
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@ -153,8 +153,13 @@ static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd)
}
if (cci & UCSI_CCI_ERROR) {
if (cmd == UCSI_GET_ERROR_STATUS)
if (cmd == UCSI_GET_ERROR_STATUS) {
ret = ucsi_acknowledge(ucsi, false);
if (ret)
return ret;
return -EIO;
}
return ucsi_read_error(ucsi);
}