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| author | Tong Tiangen <tongtiangen@huawei.com> | 2023-01-29 04:06:51 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 09:34:27 +0100 |
| commit | 313b18c77466ef849439b0c80597da5b4e73f012 (patch) | |
| tree | 28b020716cbeafe5ddc1c0e25c045c3636c8247e /mm | |
| parent | e10a97f684809cfa7fcae04f7c1d234fbb1859d3 (diff) | |
| download | linux-stable-313b18c77466ef849439b0c80597da5b4e73f012.tar.gz linux-stable-313b18c77466ef849439b0c80597da5b4e73f012.tar.bz2 linux-stable-313b18c77466ef849439b0c80597da5b4e73f012.zip | |
memory tier: release the new_memtier in find_create_memory_tier()
commit 93419139fa14124c1c507d804f2b28866ebee28d upstream.
In find_create_memory_tier(), if failed to register device, then we should
release new_memtier from the tier list and put device instead of memtier.
Link: https://lkml.kernel.org/r/20230129040651.1329208-1-tongtiangen@huawei.com
Fixes: 9832fb87834e ("mm/demotion: expose memory tier details via sysfs")
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Guohanjun <guohanjun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory-tiers.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index fa8c9d07f9ce..ba863f46759d 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -211,8 +211,8 @@ static struct memory_tier *find_create_memory_tier(struct memory_dev_type *memty ret = device_register(&new_memtier->dev); if (ret) { - list_del(&memtier->list); - put_device(&memtier->dev); + list_del(&new_memtier->list); + put_device(&new_memtier->dev); return ERR_PTR(ret); } memtier = new_memtier; |