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Subject[PATCH v5 5/7] platform/input: cros_ec: Replace -ENOTSUPP with -ENOPROTOOPT
Date
-ENOTSUPP is not a SUSV4 error code and should not be used. Use
-ENOPROTOOPT instead to report EC_RES_INVALID_VERSION responses
from the EC. This matches match the NFS response for unsupported
protocol versions.

Cc: Gwendal Grignou <gwendal@chromium.org>
Cc: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Cc: Prashant Malani <pmalani@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v5: No change
v4: Added Dmitry's Acked-by: tag
v3: Added patch

drivers/input/keyboard/cros_ec_keyb.c | 2 +-
drivers/platform/chrome/cros_ec_proto.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index fc1793ca2f17..15d17c717081 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -348,7 +348,7 @@ static int cros_ec_keyb_info(struct cros_ec_device *ec_dev,
params->event_type = event_type;

ret = cros_ec_cmd_xfer_status(ec_dev, msg);
- if (ret == -ENOTSUPP) {
+ if (ret == -ENOPROTOOPT) {
/* With older ECs we just return 0 for everything */
memset(result, 0, result_size);
ret = 0;
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 8d52b3b4bd4e..f4727511fb41 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -579,7 +579,7 @@ static int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
*
* Return:
* >=0 - The number of bytes transferred
- * -ENOTSUPP - Operation not supported
+ * -ENOPROTOOPT - Operation not supported
* -EPROTO - Protocol error
*/
int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
@@ -593,7 +593,7 @@ int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
} else if (msg->result == EC_RES_INVALID_VERSION) {
dev_dbg(ec_dev->dev, "Command invalid version (err:%d)\n",
msg->result);
- return -ENOTSUPP;
+ return -ENOPROTOOPT;
} else if (msg->result != EC_RES_SUCCESS) {
dev_dbg(ec_dev->dev, "Command result (err: %d)\n", msg->result);
return -EPROTO;
--
2.17.1
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