This is a note to let you know that I've just added the patch titled
Platform: OLPC: Fix probe error handling
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
platform-olpc-fix-probe-error-handling.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 87dd1b0c3069bf3d9b634142bd764eebc7943f3d
Author: Lubomir Rintel <lkundrak@xxxxx>
Date: Tue Jan 26 08:37:38 2021 +0100
Platform: OLPC: Fix probe error handling
[ Upstream commit cec551ea0d41c679ed11d758e1a386e20285b29d ]
Reset ec_priv if probe ends unsuccessfully.
Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
Link: https://lore.kernel.org/r/20210126073740.10232-2-lkundrak@xxxxx
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c
index f64b82824db2..2db7113383fd 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;
}
