[PATCH] spi: spi-mem: Fix inverted logic in op sanity check

From: Geert Uytterhoeven
Date: Tue Sep 25 2018 - 05:47:03 EST


On r8a7791/koelsch:

m25p80 spi0.0: error -22 reading 9f
m25p80: probe of spi0.0 failed with error -22

Apparently the logic in spi_mem_check_op() is wrong, rejecting the
spi-mem operation if any buswidth is valid, instead of invalid.

Fixes: 380583227c0c7f52 ("spi: spi-mem: Add extra sanity checks on the op param")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
drivers/spi/spi-mem.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index cc3d425aae56c634..62a7b80801d22098 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -169,10 +169,10 @@ static int spi_mem_check_op(const struct spi_mem_op *op)
(op->data.nbytes && !op->data.buswidth))
return -EINVAL;

- if (spi_mem_buswidth_is_valid(op->cmd.buswidth) ||
- spi_mem_buswidth_is_valid(op->addr.buswidth) ||
- spi_mem_buswidth_is_valid(op->dummy.buswidth) ||
- spi_mem_buswidth_is_valid(op->data.buswidth))
+ if (!spi_mem_buswidth_is_valid(op->cmd.buswidth) ||
+ !spi_mem_buswidth_is_valid(op->addr.buswidth) ||
+ !spi_mem_buswidth_is_valid(op->dummy.buswidth) ||
+ !spi_mem_buswidth_is_valid(op->data.buswidth))
return -EINVAL;

return 0;
--
2.17.1