Aneesh Kumar K.V 3e35730dd7 mtd: powernv_flash: Fix device registration error ... This change helps me to get multiple mtd device registered. Without this I get sysfs: cannot create duplicate filename '/bus/nvmem/devices/flash0' CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.0.0-rc2-00557-g1ef20ef21f22 #13 Call Trace: [c0000000b38e3220] [c000000000b58fe4] dump_stack+0xe8/0x164 (unreliable) [c0000000b38e3270] [c0000000004cf074] sysfs_warn_dup+0x84/0xb0 [c0000000b38e32f0] [c0000000004cf6c4] sysfs_do_create_link_sd.isra.0+0x114/0x150 [c0000000b38e3340] [c000000000726a84] bus_add_device+0x94/0x1e0 [c0000000b38e33c0] [c0000000007218f0] device_add+0x4d0/0x830 [c0000000b38e3480] [c0000000009d54a8] nvmem_register.part.2+0x1c8/0xb30 [c0000000b38e3560] [c000000000834530] mtd_nvmem_add+0x90/0x120 [c0000000b38e3650] [c000000000835bc8] add_mtd_device+0x198/0x4e0 [c0000000b38e36f0] [c00000000083619c] mtd_device_parse_register+0x11c/0x280 [c0000000b38e3780] [c000000000840830] powernv_flash_probe+0x180/0x250 [c0000000b38e3820] [c00000000072c120] platform_drv_probe+0x60/0xf0 [c0000000b38e38a0] [c0000000007283c8] really_probe+0x138/0x4d0 [c0000000b38e3930] [c000000000728acc] driver_probe_device+0x13c/0x1b0 [c0000000b38e39b0] [c000000000728c7c] __driver_attach+0x13c/0x1c0 [c0000000b38e3a30] [c000000000725130] bus_for_each_dev+0xa0/0x120 [c0000000b38e3a90] [c000000000727b2c] driver_attach+0x2c/0x40 [c0000000b38e3ab0] [c0000000007270f8] bus_add_driver+0x228/0x360 [c0000000b38e3b40] [c00000000072a2e0] driver_register+0x90/0x1a0 [c0000000b38e3bb0] [c00000000072c020] __platform_driver_register+0x50/0x70 [c0000000b38e3bd0] [c00000000105c984] powernv_flash_driver_init+0x24/0x38 [c0000000b38e3bf0] [c000000000010904] do_one_initcall+0x84/0x464 [c0000000b38e3cd0] [c000000001004548] kernel_init_freeable+0x530/0x634 [c0000000b38e3db0] [c000000000011154] kernel_init+0x1c/0x168 [c0000000b38e3e20] [c00000000000bed4] ret_from_kernel_thread+0x5c/0x68 mtd mtd1: Failed to register NVMEM device With the change we now have root@(none):/sys/bus/nvmem/devices# ls -al total 0 drwxr-xr-x 2 root root 0 Feb 6 20:49 . drwxr-xr-x 4 root root 0 Feb 6 20:49 .. lrwxrwxrwx 1 root root 0 Feb 6 20:49 flash@0 -> ../../../devices/platform/ibm,opal:flash@0/mtd/mtd0/flash@0 lrwxrwxrwx 1 root root 0 Feb 6 20:49 flash@1 -> ../../../devices/platform/ibm,opal:flash@1/mtd/mtd1/flash@1 Fixes: 1cbb4a1c43 ("mtd: powernv: Add powernv flash MTD abstraction driver") Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>		2019-02-13 14:19:40 +01:00
..
chips	mtd: cfi_cmdset_0020: Mark expected switch fall-throughs	2018-11-09 20:40:11 +01:00
devices	mtd: powernv_flash: Fix device registration error	2019-02-13 14:19:40 +01:00
lpddr	mtd: lpddr: use mtd_device_register()	2018-07-24 07:50:22 +02:00
maps	Kbuild updates for v4.21	2018-12-29 12:03:17 -08:00
nand	mtd: rawnand: gpmi: fix MX28 bus master lockup problem	2019-02-06 09:39:22 +01:00
parsers	mtd: partitions: Add OF support to RedBoot partitions	2018-11-12 11:51:02 +01:00
spi-nor	spi: Updates for v4.21	2018-12-25 14:43:54 -08:00
tests	mtd: rawnand: Allow selection of ECC byte ordering at runtime	2018-10-03 11:12:25 +02:00
ubi	ubi: Do not drop UBI device reference before using	2018-12-13 22:09:44 +01:00
Kconfig	Char/Misc driver patches for 4.21-rc1	2018-12-28 20:54:57 -08:00
Makefile	mtd: Move Redboot partition parser	2018-11-12 11:44:13 +01:00
afs.c	mtd: partitions: make parsers return 'const' partition arrays	2015-12-09 10:21:57 -08:00
ar7part.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
bcm47xxpart.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
bcm63xxpart.c	mtd: bcm63xxpart: give width specifier an 'int', not 'size_t'	2016-03-07 13:13:58 -08:00
cmdlinepart.c	mtd: cmdlinepart: Update comment for introduction of OFFSET_CONTINUOUS	2018-05-23 10:08:48 +02:00
ftl.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
inftlcore.c	mtd: nand: Rename nand.h into rawnand.h	2017-08-13 10:11:49 +02:00
inftlmount.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
mtd_blkdevs.c	mtd_blkdevs: convert to blk-mq	2018-10-16 08:09:58 -06:00
mtdblock.c	mtd: change len type from signed to unsigned type	2018-12-03 11:32:26 +01:00
mtdblock_ro.c	…
mtdchar.c	mtdchar: fix overflows in adjustment of `count`	2018-07-18 16:46:38 +02:00
mtdconcat.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
mtdcore.c	mtd: Use mtd->name when registering nvmem device	2019-02-13 14:10:22 +01:00
mtdcore.h	mtd: Check add_mtd_device() ret code	2019-01-07 14:06:24 +01:00
mtdoops.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
mtdpart.c	mtd: Make sure mtd->erasesize is valid even if the partition is of size 0	2019-02-06 00:02:51 +01:00
mtdsuper.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
mtdswap.c	mtd: use DEFINE_SHOW_ATTRIBUTE() instead of open-coding it	2018-12-03 11:32:26 +01:00
nftlcore.c	mtd: nand: Rename nand.h into rawnand.h	2017-08-13 10:11:49 +02:00
nftlmount.c	mtd: nftl: clean up indentation, remove extraneous tabs	2018-12-02 09:20:36 +01:00
ofpart.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
rfd_ftl.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
sm_ftl.c	mtd: rawnand: Allow selection of ECC byte ordering at runtime	2018-10-03 11:12:25 +02:00
sm_ftl.h	mtd: Stop assuming mtd_erase() is asynchronous	2018-03-15 18:21:07 +01:00
ssfdc.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00