Messages in this thread Patch in this message | | | Subject | [PATCH] libnvdimm, pmem: Fix badblocks population for 'raw' namespaces | From | Dan Williams <> | Date | Thu, 04 Oct 2018 16:56:37 -0700 |
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The driver is only initializing bb_res in the devm_memremap_pages() paths, but the raw namespace case is passing an uninitialized bb_res to nvdimm_badblocks_populate().
Fixes: e8d513483300 ("memremap: change devm_memremap_pages interface...") Cc: <stable@vger.kernel.org> Cc: Christoph Hellwig <hch@lst.de> Reported-by: Jacek Zloch <jacek.zloch@intel.com> Reported-by: Krzysztof Rusocki <krzysztof.rusocki@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> --- drivers/nvdimm/pmem.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 6071e2942053..2082ae01b9c8 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -421,9 +421,11 @@ static int pmem_attach_disk(struct device *dev, addr = devm_memremap_pages(dev, &pmem->pgmap); pmem->pfn_flags |= PFN_MAP; memcpy(&bb_res, &pmem->pgmap.res, sizeof(bb_res)); - } else + } else { addr = devm_memremap(dev, pmem->phys_addr, pmem->size, ARCH_MEMREMAP_PMEM); + memcpy(&bb_res, &nsio->res, sizeof(bb_res)); + } /* * At release time the queue must be frozen before
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