From f190ca9068e31f9cb27d5d7ee95535ad28b7d64d Mon Sep 17 00:00:00 2001 From: Zou Wei Date: Tue, 8 Jun 2021 14:34:08 +0800 Subject: [PATCH] pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq() commit 884af72c90016cfccd5717439c86b48702cbf184 upstream. Add the missing unlock before return from function mcp23s08_irq() in the error handling case. v1-->v2: remove the "return IRQ_HANDLED" line Fixes: 897120d41e7a ("pinctrl: mcp23s08: fix race condition in irq handler") Reported-by: Hulk Robot Signed-off-by: Zou Wei Link: https://lore.kernel.org/r/1623134048-56051-1-git-send-email-zou_wei@huawei.com Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/pinctrl/pinctrl-mcp23s08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index 9d5e2d9b6b93..70fe9476d0cf 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -461,7 +461,7 @@ static irqreturn_t mcp23s08_irq(int irq, void *data) if (intf == 0) { /* There is no interrupt pending */ - return IRQ_HANDLED; + goto unlock; } if (mcp_read(mcp, MCP_INTCAP, &intcap))