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| author | Wang Yufen <wangyufen@huawei.com> | 2022-12-14 10:46:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-20 13:59:29 +0300 |
| commit | e9643291b3e43f5f9b727779b54984fcde16050f (patch) | |
| tree | 4965172ba18c431857d310ca6df5fad0f8cc772f /arch/powerpc | |
| parent | c3ff87e536d66cb285f4ddffd1cf28b3ef5024fc (diff) | |
| download | linux-e9643291b3e43f5f9b727779b54984fcde16050f.tar.xz | |
powerpc/pseries: fix potential memory leak in init_cpu_associativity()
[ Upstream commit 95f1a128cd728a7257d78e868f1f5a145fc43736 ]
If the vcpu_associativity alloc memory successfully but the
pcpu_associativity fails to alloc memory, the vcpu_associativity
memory leaks.
Fixes: d62c8deeb6e6 ("powerpc/pseries: Provide vcpu dispatch statistics")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Reviewed-by: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/1671003983-10794-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index f2cb62148f36..d4d6de0628b0 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -526,8 +526,10 @@ static ssize_t vcpudispatch_stats_write(struct file *file, const char __user *p, if (cmd) { rc = init_cpu_associativity(); - if (rc) + if (rc) { + destroy_cpu_associativity(); goto out; + } for_each_possible_cpu(cpu) { disp = per_cpu_ptr(&vcpu_disp_data, cpu); |