+ mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch added to -mm tree

+ mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch added to -mm tree

[akpm]

The patch titled
     Subject: lib/test_hmm.c: fix an error code in dmirror_allocate_chunk()
has been added to the -mm tree.  Its filename is
     mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch

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------------------------------------------------------
From: Dan Carpenter <dan.carpenter@oracle.com>
Subject: lib/test_hmm.c: fix an error code in dmirror_allocate_chunk()

This is supposed to return false on failure, not a negative error code.

Link: https://lkml.kernel.org/r/20201010200812.GA1886610@mwanda
Fixes: 170e38548b81 ("mm/hmm/test: use after free in dmirror_allocate_chunk()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/test_hmm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/lib/test_hmm.c~mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk
+++ a/lib/test_hmm.c
@@ -461,7 +461,7 @@ static bool dmirror_allocate_chunk(struc
 
 	devmem = kzalloc(sizeof(*devmem), GFP_KERNEL);
 	if (!devmem)
-		return -ENOMEM;
+		return false;
 
 	res = request_free_mem_region(&iomem_resource, DEVMEM_CHUNK_SIZE,
 				      "hmm_dmirror");
_

Patches currently in -mm which might be from dan.carpenter@oracle.com are

mm-memremap_pages-convert-to-struct-range-fix.patch
mm-hmm-test-fix-an-error-code-in-dmirror_allocate_chunk.patch