From: Pan Bian <bianpan2016@xxxxxxx>
commit fe6653460ee7a7dbe0cd5fd322992af862ce5ab0 upstream.
Put the child node np when it fails to get or register device.
Fixes: e523f11141bd ("mtd: spi-nor: add hisilicon spi-nor flash controller driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
[ta: Add Fixes tag and Cc stable]
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210121091847.85362-1-bianpan2016@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/spi-nor/controllers/hisi-sfc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/mtd/spi-nor/controllers/hisi-sfc.c
+++ b/drivers/mtd/spi-nor/controllers/hisi-sfc.c
@@ -399,8 +399,10 @@ static int hisi_spi_nor_register_all(str
for_each_available_child_of_node(dev->of_node, np) {
ret = hisi_spi_nor_register(np, host);
- if (ret)
+ if (ret) {
+ of_node_put(np);
goto fail;
+ }
if (host->num_chip == HIFMC_MAX_CHIP_NUM) {
dev_warn(dev, "Flash device number exceeds the maximum chipselect number\n");
