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authorTzung-Bi Shih <tzungbi@kernel.org>2022-07-18 08:09:12 +0300
committerTzung-Bi Shih <tzungbi@kernel.org>2022-07-20 04:22:58 +0300
commit7f95d2b68b9a4f6624438f2d7dbad01c157b92a6 (patch)
tree3862dc2c8e6f1bc755f4ef8ea2e9e6ccf5daea35 /drivers/platform/chrome/cros_ec_proto.c
parent00eb36d528729692d418e53c832971a798f85ceb (diff)
downloadlinux-7f95d2b68b9a4f6624438f2d7dbad01c157b92a6.tar.xz
platform/chrome: cros_ec_proto: return -EAGAIN when retries timed out
While EC_COMMS_STATUS_PROCESSING flag is still on after it tries EC_COMMAND_RETRIES times for sending EC_CMD_GET_COMMS_STATUS, cros_ec_wait_until_complete() doesn't return an error code. Return -EAGAIN in the case instead. Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org> Reviewed-by: Guenter Roeck <groeck@chromium.org> Link: https://lore.kernel.org/r/20220718050914.2267370-9-tzungbi@kernel.org
Diffstat (limited to 'drivers/platform/chrome/cros_ec_proto.c')
-rw-r--r--drivers/platform/chrome/cros_ec_proto.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index a6ad7f7956e6..9dec475edc84 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -167,6 +167,9 @@ static int cros_ec_wait_until_complete(struct cros_ec_device *ec_dev, uint32_t *
return ret;
}
+ if (i >= EC_COMMAND_RETRIES)
+ ret = -EAGAIN;
+
return ret;
}