4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit 10ad1d754a434c024ce7eeb1cec9f69fd3ecc863 upstream.
We return success or possibly uninitialized values on these error paths
instead of proper error codes.
Fixes: 140623410536 ("mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Marek Vasut <marex@xxxxxxx>
Reviewed-by: Moritz Fischer <moritz.fischer@xxxxxxxxx>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/spi-nor/cadence-quadspi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/mtd/spi-nor/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/cadence-quadspi.c
@@ -1077,12 +1077,14 @@ static int cqspi_setup_flash(struct cqsp
/* Get flash device data */
for_each_available_child_of_node(dev->of_node, np) {
- if (of_property_read_u32(np, "reg", &cs)) {
+ ret = of_property_read_u32(np, "reg", &cs);
+ if (ret) {
dev_err(dev, "Couldn't determine chip select.\n");
goto err;
}
if (cs >= CQSPI_MAX_CHIPSELECT) {
+ ret = -EINVAL;
dev_err(dev, "Chip select %d out of range.\n", cs);
goto err;
}
--
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