[PATCH] staging: gpib: Fix error handling paths in cb_gpib_probe()

From: Christophe JAILLET
Date: Sat Oct 26 2024 - 07:12:55 EST


If cb_gpib_config() fails, 'info' needs to be freed, as already done in the
remove function.

While at it, remove a pointless comment related to gpib_attach().

Fixes: 6f1067cfbee7 ("mfd: Add Congatec Board Controller driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
*NOT* compile tested, so provided as-is

It does not compile on x86_64 because of some missing includes. I've not
seen if it was dedicated to a specific arch, so couldn't cross-compile
---
drivers/staging/gpib/cb7210/cb7210.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gpib/cb7210/cb7210.c b/drivers/staging/gpib/cb7210/cb7210.c
index c827d03dacf5..98f20dab320a 100644
--- a/drivers/staging/gpib/cb7210/cb7210.c
+++ b/drivers/staging/gpib/cb7210/cb7210.c
@@ -1194,8 +1194,7 @@ struct local_info {
static int cb_gpib_probe(struct pcmcia_device *link)
{
struct local_info *info;
-
-// int ret, i;
+ int ret;

DEBUG(0, "%s(0x%p)\n", __func__, link);

@@ -1223,8 +1222,16 @@ static int cb_gpib_probe(struct pcmcia_device *link)

/* Register with Card Services */
curr_dev = link;
- return cb_gpib_config(link);
-} /* gpib_attach */
+ ret = cb_gpib_config(link);
+ if (ret)
+ goto free_info;
+
+ return 0;
+
+free_info:
+ kfree(info);
+ return ret;
+}

/*
* This deletes a driver "instance". The device is de-registered
--
2.47.0