From: Colin Ian King <colin.k...@canonical.com>

There are two error return paths that are not kfree'ing ep that
lead to memory leaks.  Fix this by exiting on error via the
ext_out exit path that performs the necessary kfree.

Detected by CoverityScan, CID#1462747 ("Resource Leak")

Fixes: b83ea87958c5 ("mtd: nand: provide several helpers to do common NAND 
operations")
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/mtd/nand/nand_base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index eb810d5d44e7..1c5126d1db8c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -5046,14 +5046,14 @@ static int nand_flash_detect_ext_param_page(struct 
nand_chip *chip,
        /* Send our own NAND_CMD_PARAM. */
        ret = nand_read_param_page_op(chip, 0, NULL, 0);
        if (ret)
-               return ret;
+               goto ext_out;
 
        /* Use the Change Read Column command to skip the ONFI param pages. */
        ret = nand_change_read_column_op(chip,
                                         sizeof(*p) * p->num_of_param_pages,
                                         ep, len, true);
        if (ret)
-               return ret;
+               goto ext_out;
 
        ret = -EINVAL;
        if ((onfi_crc16(ONFI_CRC_BASE, ((uint8_t *)ep) + 2, len - 2)
-- 
2.14.1

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