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Ioana Ciornei e70c7aad7a net: dsa: Add error path handling in dsa_tree_setup()
In case a call to dsa_tree_setup() fails, an attempt to cleanup is made
by calling dsa_tree_remove_switch(), which should take care of
removing/unregistering any resources previously allocated. This does not
happen because it is conditioned by dst->setup being true, which is set
only after _all_ setup steps were performed successfully.

This is especially interesting when the internal MDIO bus is registered
but afterwards, a port setup fails and the mdiobus_unregister() is never
called. This leads to a BUG_ON() complaining about the fact that it's
trying to free an MDIO bus that's still registered.

Add proper error handling in all functions branching from
dsa_tree_setup().

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-30 14:58:31 -07:00
arch MIPS: ath79: ar9331: add Ethernet nodes 2019-05-26 13:22:50 -07:00
block
certs
crypto SPDX update for 5.2-rc2, round 1 2019-05-21 12:33:38 -07:00
Documentation Documentation: ip-sysctl.txt: Document tcp_fastopen_key 2019-05-30 13:41:26 -07:00
drivers r8169: decouple rtl_phy_write_fw from actual driver code 2019-05-30 14:39:25 -07:00
fs Fix a gfs2 sign extension bug introduced in v4.3. 2019-05-22 08:31:09 -07:00
include sctp: deduplicate identical skb_checksum_ops 2019-05-30 14:35:44 -07:00
init treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
ipc
kernel SPDX update for 5.2-rc2, round 1 2019-05-21 12:33:38 -07:00
lib SPDX update for 5.2-rc2, round 1 2019-05-21 12:33:38 -07:00
LICENSES
mm treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
net net: dsa: Add error path handling in dsa_tree_setup() 2019-05-30 14:58:31 -07:00
samples treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
scripts SPDX update for 5.2-rc2, round 1 2019-05-21 12:33:38 -07:00
security net: nexthop uapi 2019-05-28 21:37:30 -07:00
sound treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
tools selftests/net: add TFO key rotation selftest 2019-05-30 13:41:26 -07:00
usr
virt treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-20 08:21:07 -07:00
Makefile Linux 5.2-rc1 2019-05-19 15:47:09 -07:00
README

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.