The chip selects are numbered 0..(max chip selects - 1). Chip select
with number <max chip selects> is invalid. Fix the check for that. Using
the out of bound chip select may hang your board.
Signed-off-by: Stefan Lengfeld <s.lengfeld@xxxxxxxxx>
---
commands/spi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/commands/spi.c b/commands/spi.c
index 21db9ae..6603b34 100644
--- a/commands/spi.c
+++ b/commands/spi.c
@@ -68,8 +68,8 @@ static int do_spi(int argc, char *argv[])
return -ENODEV;
}
- if (spi.chip_select > spi.master->num_chipselect) {
- printf("spi chip select (%d)> master num chipselect (%d)\n",
+ if (spi.chip_select >= spi.master->num_chipselect) {
+ printf("spi chip select (%d) >= master num chipselect (%d)\n",
spi.chip_select, spi.master->num_chipselect);
return -EINVAL;
}
--
1.9.1
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