2d5a495501
[ Upstream commit 280c0f7cd0aa4d190619b18243110e052a90775c ]
A problem about ionic create debugfs failed is triggered with the
following log given:
[ 415.799514] debugfs: Directory 'ionic' with parent '/' already present!
The reason is that ionic_init_module() returns ionic_bus_register_driver()
directly without checking its return value, if ionic_bus_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ionic can never be created later.
ionic_init_module()
ionic_debugfs_create() # create debugfs directory
ionic_bus_register_driver()
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when ionic_bus_register_driver() returns error.
Fixes: fbfb8031533c ("ionic: Add hardware init and device commands")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Link: https://lore.kernel.org/r/20221113092929.19161-1-yuancan@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.