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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Guangshuo Li
1035807ed1
[ Upstream commit9a8826fdfb] After kobject_init_and_add(), the lifetime of the embedded struct kobject is expected to be managed through the kobject core reference counting. In add_port(), failure paths after kobject_init_and_add() must not free struct mlx4_port directly, because the embedded kobject is then managed by the kobject core. Freeing it directly leaves the kobject reference counting unbalanced and can lead to incorrect lifetime handling. Allocate the pkey and gid attribute arrays before kobject_init_and_add(), so failures before kobject initialization can be handled by directly freeing the allocated memory. Once kobject_init_and_add() has been called, unwind later failures by removing any successfully created sysfs groups, calling kobject_del(), and then releasing the embedded kobject with kobject_put(). Fixes:c1e7e46612("IB/mlx4: Add iov directory in sysfs under the ib device") Link: https://patch.msgid.link/r/20260518021910.972900-1-lgs201920130244@gmail.com Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> 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.