diff options
| author | Cristian Marussi <cristian.marussi@arm.com> | 2021-06-08 11:30:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-08 09:04:08 +0200 |
| commit | 76f5314d7859dc36121274dfd7d1a7b0545c0032 (patch) | |
| tree | 1ac80f6d6fb97ceec8dc6734262e31aacc514dbf | |
| parent | 1b38f70bbc7c2b293d0352010228b896c3cdd914 (diff) | |
firmware: arm_scmi: Add delayed response status check
commit f1748b1ee1fa0fd1a074504045b530b62f949188 upstream.
A successfully received delayed response could anyway report a failure at
the protocol layer in the message status field.
Add a check also for this error condition.
Link: https://lore.kernel.org/r/20210608103056.3388-1-cristian.marussi@arm.com
Fixes: 58ecdf03dbb9 ("firmware: arm_scmi: Add support for asynchronous commands and delayed response")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 48e6e2b48924..4e43bdfa041f 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -515,8 +515,12 @@ int scmi_do_xfer_with_response(const struct scmi_handle *handle, xfer->async_done = &async_response; ret = scmi_do_xfer(handle, xfer); - if (!ret && !wait_for_completion_timeout(xfer->async_done, timeout)) - ret = -ETIMEDOUT; + if (!ret) { + if (!wait_for_completion_timeout(xfer->async_done, timeout)) + ret = -ETIMEDOUT; + else if (xfer->hdr.status) + ret = scmi_to_linux_errno(xfer->hdr.status); + } xfer->async_done = NULL; return ret; |