gpio: mcp23s08: Do not free unrequested interrupt

If devm_request_threaded_irq fails for some reason we call
mcp23s08_irq_teardown afterwards.
Do not free the unrequested interrupt in this case. free_irq can also be
omitted for the error free case because we use devm_request_threaded_irq.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 468d10d2ac1e..1ac7de85da8b 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -514,8 +514,6 @@ static void mcp23s08_irq_teardown(struct mcp23s08 *mcp)
 {
         unsigned int irq, i;
 
-        free_irq(mcp->irq, mcp);
-
         for (i = 0; i < mcp->chip.ngpio; i++) {
                 irq = irq_find_mapping(mcp->irq_domain, i);
                 if (irq > 0)