From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 2/3] state: driver: handle EPROBE_DEFER
Date: Thu, 20 Oct 2016 09:31:21 +0200 [thread overview]
Message-ID: <20161020073122.19295-2-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20161020073122.19295-1-s.hauer@pengutronix.de>
When state_new_from_node() returns -ENODEV that means that there
is no device available for the node, so return -EPROBE_DEFER in this
case and hope a device is there later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/misc/state.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/state.c b/drivers/misc/state.c
index b9eb1b7..b43aee6 100644
--- a/drivers/misc/state.c
+++ b/drivers/misc/state.c
@@ -28,8 +28,12 @@ static int state_probe(struct device_d *dev)
bool readonly = false;
state = state_new_from_node(np, NULL, 0, 0, readonly);
- if (IS_ERR(state))
- return PTR_ERR(state);
+ if (IS_ERR(state)) {
+ int ret = PTR_ERR(state);
+ if (ret == -ENODEV)
+ ret = -EPROBE_DEFER;
+ return ret;
+ }
return 0;
}
--
2.9.3
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next prev parent reply other threads:[~2016-10-20 7:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-20 7:31 [PATCH 1/3] state: pass error code instead of inventing new one Sascha Hauer
2016-10-20 7:31 ` Sascha Hauer [this message]
2016-10-20 7:31 ` [PATCH 3/3] of_path: handle no driver for device Sascha Hauer
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