[PATCH wireless] ray_cs: Fix an error handling path in ray_probe()

[PATCH wireless] ray_cs: Fix an error handling path in ray_probe()

[Christophe JAILLET]

Should ray_config() fail, some resources need to be released as already
done in the remove function.

While at it, remove a useless and erroneous comment. The probe is
ray_probe(), not ray_attach().

Fixes: 15b99ac17295 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/wireless/legacy/ray_cs.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/legacy/ray_cs.c b/drivers/net/wireless/legacy/ray_cs.c
index 1f57a0055bbd..38782d4c4694 100644
--- a/drivers/net/wireless/legacy/ray_cs.c
+++ b/drivers/net/wireless/legacy/ray_cs.c
@@ -270,13 +270,14 @@ static int ray_probe(struct pcmcia_device *p_dev)
 {
 	ray_dev_t *local;
 	struct net_device *dev;
+	int ret;
 
 	dev_dbg(&p_dev->dev, "ray_attach()\n");
 
 	/* Allocate space for private device-specific data */
 	dev = alloc_etherdev(sizeof(ray_dev_t));
 	if (!dev)
-		goto fail_alloc_dev;
+		return -ENOMEM;
 
 	local = netdev_priv(dev);
 	local->finder = p_dev;
@@ -313,11 +314,16 @@ static int ray_probe(struct pcmcia_device *p_dev)
 	timer_setup(&local->timer, NULL, 0);
 
 	this_device = p_dev;
-	return ray_config(p_dev);
+	ret = ray_config(p_dev);
+	if (ret)
+		goto err_free_dev;
+
+	return 0;
 
-fail_alloc_dev:
-	return -ENOMEM;
-} /* ray_attach */
+err_free_dev:
+	free_netdev(dev);
+	return ret;
+}
 
 static void ray_detach(struct pcmcia_device *link)
 {
-- 
2.34.1

Re: [PATCH wireless] ray_cs: Fix an error handling path in ray_probe()

[Simon Horman]

On Sat, May 20, 2023 at 10:13:22AM +0200, Christophe JAILLET wrote:
> Should ray_config() fail, some resources need to be released as already
> done in the remove function.
> 
> While at it, remove a useless and erroneous comment. The probe is
> ray_probe(), not ray_attach().
> 
> Fixes: 15b99ac17295 ("[PATCH] pcmcia: add return value to _config() functions")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Reviewed-by: Simon Horman <simon.horman@corigine.com>

Re: [wireless] wifi: ray_cs: Fix an error handling path in ray_probe()

[Kalle Valo]

Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote:

> Should ray_config() fail, some resources need to be released as already
> done in the remove function.
> 
> While at it, remove a useless and erroneous comment. The probe is
> ray_probe(), not ray_attach().
> 
> Fixes: 15b99ac17295 ("[PATCH] pcmcia: add return value to _config() functions")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Reviewed-by: Simon Horman <simon.horman@corigine.com>

Patch applied to wireless-next.git, thanks.

4f8d66a9fb2e wifi: ray_cs: Fix an error handling path in ray_probe()

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/8c544d18084f8b37dd108e844f7e79e85ff708ff.1684570373.git.christophe.jaillet@wanadoo.fr/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches