Commit 8d13c029 authored Apr 27, 2017 by Toshi Kani Committed by Dan Williams Apr 28, 2017

libnvdimm: fix clear length of nvdimm_forget_poison()



ND_CMD_CLEAR_ERROR command returns 'clear_err.cleared', the length
of error actually cleared, which may be smaller than its requested
'len'.

Change nvdimm_clear_poison() to call nvdimm_forget_poison() with
'clear_err.cleared' when this value is valid.

Cc: <stable@vger.kernel.org>
Fixes: e046114a ("libnvdimm: clear the internal poison_list when clearing badblocks")
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

parent b2518c78

drivers/nvdimm/bus.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -219,7 +219,9 @@ long nvdimm_clear_poison(struct device *dev, phys_addr_t phys,
		if (cmd_rc < 0)
		return cmd_rc;

		nvdimm_forget_poison(nvdimm_bus, phys, len);
		if (clear_err.cleared > 0)
		nvdimm_forget_poison(nvdimm_bus, phys, clear_err.cleared);

		return clear_err.cleared;
		}
		EXPORT_SYMBOL_GPL(nvdimm_clear_poison);

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