Re: [PATCH] enclosure: fix error path - actually return ERR_PTR()on error

From: James Bottomley
Date: Fri Mar 12 2010 - 18:25:02 EST


On Fri, 2010-03-12 at 15:50 +0200, Jani Nikula wrote:
> Signed-off-by: Jani Nikula <ext-jani.1.nikula@xxxxxxxxx>
>
> ---
>
> NOTE: I'm afraid I'm unable to test this; please consider this more a
> bug report than a complete patch.

It's a good bug report, thanks. It looks like there's an unreleased
cdev pointer along that path too, so this should be the final fix.

James

---

diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 1eac626..68e4cd7 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -284,8 +284,11 @@ enclosure_component_register(struct enclosure_device *edev,
cdev->groups = enclosure_groups;

err = device_register(cdev);
- if (err)
- ERR_PTR(err);
+ if (err) {
+ ecomp->number = -1;
+ put_device(cdev);
+ return ERR_PTR(err);
+ }

return ecomp;
}



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