diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-02-11 16:33:38 +0300 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2019-02-13 16:19:40 +0300 |
| commit | 3e35730dd7540bad2d4e002703996391d9be49a0 (patch) | |
| tree | bc4249456d3d14964b56010fa0a32d7d8b155cc1 /drivers/mtd/devices | |
| parent | 6e9526852fad7eb77b7755114951237312258ec7 (diff) | |
| download | linux-3e35730dd7540bad2d4e002703996391d9be49a0.tar.xz | |
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: 1cbb4a1c433a ("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>
Diffstat (limited to 'drivers/mtd/devices')
| -rw-r--r-- | drivers/mtd/devices/powernv_flash.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c index 22f753e555ac..83f88b8b5d9f 100644 --- a/drivers/mtd/devices/powernv_flash.c +++ b/drivers/mtd/devices/powernv_flash.c @@ -212,7 +212,7 @@ static int powernv_flash_set_driver_info(struct device *dev, * Going to have to check what details I need to set and how to * get them */ - mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node); + mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFP", dev->of_node); mtd->type = MTD_NORFLASH; mtd->flags = MTD_WRITEABLE; mtd->size = size; |