[PATCH 1/3] Platform: OLPC: Fix probe error handling

From: Lubomir Rintel
Date: Tue Jan 26 2021 - 12:33:28 EST


Reset ec_priv if probe ends unsuccessfully.

Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
---
drivers/platform/olpc/olpc-ec.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c
index f64b82824db28..2db7113383fdc 100644
--- a/drivers/platform/olpc/olpc-ec.c
+++ b/drivers/platform/olpc/olpc-ec.c
@@ -426,11 +426,8 @@ static int olpc_ec_probe(struct platform_device *pdev)

/* get the EC revision */
err = olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, &ec->version, 1);
- if (err) {
- ec_priv = NULL;
- kfree(ec);
- return err;
- }
+ if (err)
+ goto error;

config.dev = pdev->dev.parent;
config.driver_data = ec;
@@ -440,12 +437,16 @@ static int olpc_ec_probe(struct platform_device *pdev)
if (IS_ERR(ec->dcon_rdev)) {
dev_err(&pdev->dev, "failed to register DCON regulator\n");
err = PTR_ERR(ec->dcon_rdev);
- kfree(ec);
- return err;
+ goto error;
}

ec->dbgfs_dir = olpc_ec_setup_debugfs();

+ return 0;
+
+error:
+ ec_priv = NULL;
+ kfree(ec);
return err;
}

--
2.29.2