[U-Boot] [PATCH] spi: cadence_qspi: Fix checking return value of fdt_first_subnode()

fdt_first_subnode() returns -FDT_ERR_NOTFOUND if no subnode found. 0 is supposed to be a valid offset returns from fdt_first_subnode().

Signed-off-by: Axel Lin axel.lin@ingics.com --- drivers/spi/cadence_qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index fa95b19..98ae3b8 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -297,7 +297,7 @@ static int cadence_spi_ofdata_to_platdata(struct udevice *bus)

/* All other paramters are embedded in the child node */ subnode = fdt_first_subnode(blob, node); - if (!subnode) { + if (subnode < 0) { printf("Error: subnode with SPI flash config missing!\n"); return -ENODEV; }