[PATCH] mtd: spi: Add missing free in sf_get_bootflow

[Francois Berder]

Free buf if spi_flash_read_dm fails.

Signed-off-by: Francois Berder <fber...@outlook.fr>
---
 drivers/mtd/spi/sf_bootdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi/sf_bootdev.c b/drivers/mtd/spi/sf_bootdev.c
index 017a74a3016..720faf51a1f 100644
--- a/drivers/mtd/spi/sf_bootdev.c
+++ b/drivers/mtd/spi/sf_bootdev.c
@@ -35,8 +35,10 @@ static int sf_get_bootflow(struct udevice *dev, struct 
bootflow_iter *iter,
 
        ret = spi_flash_read_dm(sf, env_get_hex("script_offset_f", 0),
                                size, buf);
-       if (ret)
+       if (ret) {
+               free(buf);
                return log_msg_ret("cmd", -EINVAL);
+       }
        bflow->state = BOOTFLOWST_MEDIA;
 
        ret = bootmeth_set_bootflow(bflow->method, bflow, buf, size);
-- 
2.43.0