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Revert "libertas: add checks for the return value of sysfs_create_group"

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[ Upstream commit 4665107776 ]

This reverts commit 434256833d.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit was incorrect, the error needs to be propagated back
to the caller AND if the second group call fails, the first needs to be
removed.  There are much better ways to solve this, the driver should
NOT be calling sysfs_create_group() on its own as it is racing userspace
and loosing.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-53-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Greg Kroah-Hartman
2021-05-03 13:57:19 +02:00
parent e04f1a7e31
commit bf2b6ffa96
1 changed files with 0 additions and 5 deletions
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5
drivers/net/wireless/marvell/libertas/mesh.c
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@ -805,12 +805,7 @@ static void lbs_persist_config_init(struct net_device *dev)
{ {
int ret; int ret;
ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group); ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
if (ret)
pr_err("failed to create boot_opts_group.\n");
ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group); ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
if (ret)
pr_err("failed to create mesh_ie_group.\n");
} }
static void lbs_persist_config_remove(struct net_device *dev) static void lbs_persist_config_remove(struct net_device *dev)