+++ /dev/null
-From foo@baz Tue Apr 10 10:31:53 CEST 2018
-From: Boris Brezillon <boris.brezillon@free-electrons.com>
-Date: Mon, 10 Apr 2017 10:35:17 +0200
-Subject: mtd: nand: gpmi: Fix gpmi_nand_init() error path
-
-From: Boris Brezillon <boris.brezillon@free-electrons.com>
-
-
-[ Upstream commit 4d02423e9afe6c46142ce98bbcaf5167316dbfbf ]
-
-The GPMI driver is wrongly assuming that nand_release() can safely be
-called on an uninitialized/unregistered NAND device.
-
-Add a new err_nand_cleanup label in the error path and only execute if
-nand_scan_tail() succeeded.
-
-Note that we now call nand_cleanup() instead of nand_release()
-(nand_release() is actually grouping the mtd_device_unregister() and
-nand_cleanup() in one call) because there's no point in trying to
-unregister a device that has never been registered.
-
-Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
-Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
-Acked-by: Han Xu <han.xu@nxp.com>
-Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
-Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 10 ++++++----
- 1 file changed, 6 insertions(+), 4 deletions(-)
-
---- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
-+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
-@@ -1949,19 +1949,21 @@ static int gpmi_nand_init(struct gpmi_na
-
- ret = nand_boot_init(this);
- if (ret)
-- goto err_out;
-+ goto err_nand_cleanup;
- ret = chip->scan_bbt(mtd);
- if (ret)
-- goto err_out;
-+ goto err_nand_cleanup;
-
- ppdata.of_node = this->pdev->dev.of_node;
- ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
- if (ret)
-- goto err_out;
-+ goto err_nand_cleanup;
- return 0;
-
-+err_nand_cleanup:
-+ nand_cleanup(chip);
- err_out:
-- gpmi_nand_exit(this);
-+ gpmi_free_dma_buffer(this);
- return ret;
- }
-
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