Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.11 03/41] coda: fix reference counting in coda_file_mmap error path | Date | Mon, 26 Apr 2021 09:29:50 +0200 |
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From: Christian König <christian.koenig@amd.com>
commit 9da29c7f77cd04e5c9150e30f047521b6f20a918 upstream.
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.
Link: https://lkml.kernel.org/r/20210421132012.82354-1-christian.koenig@amd.com Fixes: 1527f926fd04 ("mm: mmap: fix fput in error path v2") Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Jan Harkes <jaharkes@cs.cmu.edu> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: <stable@vger.kernel.org> [5.11+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/coda/file.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -175,10 +175,10 @@ coda_file_mmap(struct file *coda_file, s 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 */
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