From: Wei Yongjun <weiyongjun1@huawei.com> To: <jglisse@redhat.com>, Ralph Campbell <rcampbell@nvidia.com> Cc: Wei Yongjun <weiyongjun1@huawei.com>, <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>, <kernel-janitors@vger.kernel.org>, Hulk Robot <hulkci@huawei.com> Subject: [PATCH -next] mm/hmm/test: fix missing unlock on error in dmirror_migrate_finalize_and_map() Date: Sat, 9 May 2020 03:02:25 +0000 [thread overview] Message-ID: <20200509030225.14592-1-weiyongjun1@huawei.com> (raw) Add the missing unlock before return from function dmirror_migrate_finalize_and_map() in the error handling case. Fixes: 5d5e54be8a1e ("mm/hmm/test: add selftest driver for HMM") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> --- lib/test_hmm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/test_hmm.c b/lib/test_hmm.c index 00bca6116f93..30462193c4ff 100644 --- a/lib/test_hmm.c +++ b/lib/test_hmm.c @@ -647,8 +647,10 @@ static int dmirror_migrate_finalize_and_map(struct migrate_vma *args, if (*dst & MIGRATE_PFN_WRITE) entry = xa_tag_pointer(entry, DPT_XA_TAG_WRITE); entry = xa_store(&dmirror->pt, pfn, entry, GFP_ATOMIC); - if (xa_is_err(entry)) + if (xa_is_err(entry)) { + mutex_unlock(&dmirror->mutex); return xa_err(entry); + } } mutex_unlock(&dmirror->mutex);
WARNING: multiple messages have this Message-ID (diff)
From: Wei Yongjun <weiyongjun1@huawei.com> To: jglisse@redhat.com, Ralph Campbell <rcampbell@nvidia.com> Cc: Wei Yongjun <weiyongjun1@huawei.com>, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Hulk Robot <hulkci@huawei.com> Subject: [PATCH -next] mm/hmm/test: fix missing unlock on error in dmirror_migrate_finalize_and_map() Date: Sat, 09 May 2020 02:58:50 +0000 [thread overview] Message-ID: <20200509030225.14592-1-weiyongjun1@huawei.com> (raw) Add the missing unlock before return from function dmirror_migrate_finalize_and_map() in the error handling case. Fixes: 5d5e54be8a1e ("mm/hmm/test: add selftest driver for HMM") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> --- lib/test_hmm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/test_hmm.c b/lib/test_hmm.c index 00bca6116f93..30462193c4ff 100644 --- a/lib/test_hmm.c +++ b/lib/test_hmm.c @@ -647,8 +647,10 @@ static int dmirror_migrate_finalize_and_map(struct migrate_vma *args, if (*dst & MIGRATE_PFN_WRITE) entry = xa_tag_pointer(entry, DPT_XA_TAG_WRITE); entry = xa_store(&dmirror->pt, pfn, entry, GFP_ATOMIC); - if (xa_is_err(entry)) + if (xa_is_err(entry)) { + mutex_unlock(&dmirror->mutex); return xa_err(entry); + } } mutex_unlock(&dmirror->mutex);
next reply other threads:[~2020-05-09 2:58 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-09 2:58 Wei Yongjun [this message] 2020-05-09 3:02 ` [PATCH -next] mm/hmm/test: fix missing unlock on error in dmirror_migrate_finalize_and_map() Wei Yongjun 2020-05-11 17:22 ` Ralph Campbell 2020-05-11 17:22 ` Ralph Campbell 2020-05-12 19:59 ` Jason Gunthorpe 2020-05-12 19:59 ` Jason Gunthorpe
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