From: "Christian König" <ckoenig.leichtzumerken@gmail.com> To: linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, codalist@coda.cs.cmu.edu, dri-devel@lists.freedesktop.org Cc: jaharkes@cs.cmu.edu, coda@cs.cmu.edu, miklos@szeredi.hu, akpm@linux-foundation.org, jgg@ziepe.ca Subject: [PATCH 1/2] coda: fix reference counting in coda_file_mmap error path Date: Wed, 21 Apr 2021 15:20:11 +0200 [thread overview] Message-ID: <20210421132012.82354-1-christian.koenig@amd.com> (raw) mmap_region() now calls fput() on the vma->vm_file. So we need to drop the extra reference on the coda file instead of the host file. Signed-off-by: Christian König <christian.koenig@amd.com> Fixes: 1527f926fd04 ("mm: mmap: fix fput in error path v2") CC: stable@vger.kernel.org # 5.11+ --- fs/coda/file.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/coda/file.c b/fs/coda/file.c index 128d63df5bfb..ef5ca22bfb3e 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -175,10 +175,10 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma) ret = call_mmap(vma->vm_file, vma); if (ret) { - /* if call_mmap fails, our caller will put coda_file so we - * should drop the reference to the host_file that we got. + /* if call_mmap fails, our caller will put host_file so we + * should drop the reference to the coda_file that we got. */ - fput(host_file); + fput(coda_file); kfree(cvm_ops); } else { /* here we add redirects for the open/close vm_operations */ -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: "Christian König" <ckoenig.leichtzumerken@gmail.com> To: linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, codalist@coda.cs.cmu.edu, dri-devel@lists.freedesktop.org Cc: jgg@ziepe.ca, jaharkes@cs.cmu.edu, akpm@linux-foundation.org, miklos@szeredi.hu, coda@cs.cmu.edu Subject: [PATCH 1/2] coda: fix reference counting in coda_file_mmap error path Date: Wed, 21 Apr 2021 15:20:11 +0200 [thread overview] Message-ID: <20210421132012.82354-1-christian.koenig@amd.com> (raw) mmap_region() now calls fput() on the vma->vm_file. So we need to drop the extra reference on the coda file instead of the host file. Signed-off-by: Christian König <christian.koenig@amd.com> Fixes: 1527f926fd04 ("mm: mmap: fix fput in error path v2") CC: stable@vger.kernel.org # 5.11+ --- fs/coda/file.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/coda/file.c b/fs/coda/file.c index 128d63df5bfb..ef5ca22bfb3e 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -175,10 +175,10 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma) ret = call_mmap(vma->vm_file, vma); if (ret) { - /* if call_mmap fails, our caller will put coda_file so we - * should drop the reference to the host_file that we got. + /* if call_mmap fails, our caller will put host_file so we + * should drop the reference to the coda_file that we got. */ - fput(host_file); + fput(coda_file); kfree(cvm_ops); } else { /* here we add redirects for the open/close vm_operations */ -- 2.25.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next reply other threads:[~2021-04-21 13:23 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-21 13:20 Christian König [this message] 2021-04-21 13:20 ` [PATCH 1/2] coda: fix reference counting in coda_file_mmap error path Christian König 2021-04-21 13:20 ` [PATCH 2/2] ovl: fix reference counting in ovl_mmap " Christian König 2021-04-21 13:20 ` Christian König 2021-04-22 8:13 ` Daniel Vetter 2021-04-22 8:13 ` Daniel Vetter 2021-04-22 8:11 ` [PATCH 1/2] coda: fix reference counting in coda_file_mmap " Daniel Vetter 2021-04-22 8:11 ` Daniel Vetter 2021-04-22 12:27 ` Jan Harkes 2021-04-22 12:27 ` Jan Harkes 2021-04-22 12:39 ` Christian König 2021-04-22 12:39 ` Christian König 2021-04-22 13:51 ` Jan Harkes 2021-04-22 13:51 ` Jan Harkes 2021-04-23 8:10 ` Christian König 2021-04-23 8:10 ` Christian König
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210421132012.82354-1-christian.koenig@amd.com \ --to=ckoenig.leichtzumerken@gmail.com \ --cc=akpm@linux-foundation.org \ --cc=coda@cs.cmu.edu \ --cc=codalist@coda.cs.cmu.edu \ --cc=dri-devel@lists.freedesktop.org \ --cc=jaharkes@cs.cmu.edu \ --cc=jgg@ziepe.ca \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-unionfs@vger.kernel.org \ --cc=miklos@szeredi.hu \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.