diff options
| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-04-10 10:35:17 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-06-01 10:09:27 +0200 |
| commit | 4d02423e9afe6c46142ce98bbcaf5167316dbfbf (patch) | |
| tree | 8022670cace04e775873f5f45dca32b83444009b /drivers/mtd | |
| parent | mtd: gpmi: document current clock requirements (diff) | |
| download | linux-4d02423e9afe6c46142ce98bbcaf5167316dbfbf.tar.xz linux-4d02423e9afe6c46142ce98bbcaf5167316dbfbf.zip | |
mtd: nand: gpmi: Fix gpmi_nand_init() error path
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>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 9b777be633a9..f7ac81e44ce7 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -2055,18 +2055,20 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) 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; ret = mtd_device_register(mtd, 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; } |