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Ricardo Ribalda Delgado 44fd02a3d7 mtd: Fix mtd not registered due to nvmem name collision 
[ Upstream commit 7b01b7239d ]

When the nvmem framework is enabled, a nvmem device is created per mtd
device/partition.

It is not uncommon that a device can have multiple mtd devices with
partitions that have the same name. Eg, when there DT overlay is allowed
and the same device with mtd is attached twice.

Under that circumstances, the mtd fails to register due to a name
duplication on the nvmem framework.

With this patch we use the mtdX name instead of the partition name,
which is unique.

[    8.948991] sysfs: cannot create duplicate filename '/bus/nvmem/devices/Production Data'
[    8.948992] CPU: 7 PID: 246 Comm: systemd-udevd Not tainted 5.5.0-qtec-standard #13
[    8.948993] Hardware name: AMD Dibbler/Dibbler, BIOS 05.22.04.0019 10/26/2019
[    8.948994] Call Trace:
[    8.948996]  dump_stack+0x50/0x70
[    8.948998]  sysfs_warn_dup.cold+0x17/0x2d
[    8.949000]  sysfs_do_create_link_sd.isra.0+0xc2/0xd0
[    8.949002]  bus_add_device+0x74/0x140
[    8.949004]  device_add+0x34b/0x850
[    8.949006]  nvmem_register.part.0+0x1bf/0x640
...
[    8.948926] mtd mtd8: Failed to register NVMEM device

Fixes: c4dfa25ab3 ("mtd: add support for reading MTD devices via the nvmem API")
Signed-off-by: Ricardo Ribalda Delgado <ribalda@kernel.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-05-27 17:46:22 +02:00
Documentation USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") 2020-04-29 16:33:14 +02:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
arch KVM: SVM: Fix potential memory leak in svm_cpu_init() 2020-05-27 17:46:08 +02:00
block iocost: protect iocg->abs_vdebt with iocg->waitq.lock 2020-05-14 07:58:27 +02:00
certs PKCS#7: Refactor verify_pkcs7_signature() 2019-08-05 18:40:18 -04:00
crypto gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:20:29 +02:00
drivers mtd: Fix mtd not registered due to nvmem name collision 2020-05-27 17:46:22 +02:00
fs afs: Don't unlock fetched data pages until the op completes successfully 2020-05-27 17:46:20 +02:00
include SUNRPC: Revert 241b1f419f ("SUNRPC: Remove xdr_buf_trim()") 2020-05-20 08:20:39 +02:00
init x86: Fix early boot crash on gcc-10, third try 2020-05-20 08:20:34 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:20:16 +02:00
kernel Stop the ad-hoc games with -Wno-maybe-initialized 2020-05-20 08:20:28 +02:00
lib lib: devres: add a helper function for ioremap_uc 2020-05-10 10:31:30 +02:00
mm shmem: fix possible deadlocks on shmlock_user_lock 2020-05-20 08:20:03 +02:00
net bpf: Fix sk_psock refcnt leak when receiving message 2020-05-20 08:20:39 +02:00
samples vmalloc: fix remap_vmalloc_range() bounds checks 2020-04-29 16:33:14 +02:00
scripts scripts/decodecode: fix trapping instruction formatting 2020-05-14 07:58:29 +02:00
security evm: Fix a small race in init_desc() 2020-05-27 17:46:17 +02:00
sound Revert "ALSA: hda/realtek: Fix pop noise on ALC225" 2020-05-20 08:20:36 +02:00
tools bpf: Test_progs, fix test_get_stack_rawtp_err.c build 2020-05-20 08:20:41 +02:00
usr initramfs: restore default compression behavior 2020-04-08 09:08:38 +02:00
virt KVM: arm: vgic: Synchronize the whole guest on GIC{D,R}_I{S,C}ACTIVER read 2020-05-20 08:20:04 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild kbuild: do not descend to ./Kbuild when cleaning 2019-08-21 21:03:58 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 17:22:19 +01:00
Makefile Linux 5.4.42 2020-05-20 08:20:41 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.