From a97cea2a5cfb1e66716226ea258251317acd8ffe Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Fri, 11 Sep 2015 16:34:07 +0200 Subject: [PATCH] clk: at91: system: don't try to free_irq when there is no IRQ In the error path of at91_clk_register_system(), sys->irq is freed unconditionally but it may not exist or be request at all. Signed-off-by: Alexandre Belloni Acked-by: Boris Brezillon Signed-off-by: Stephen Boyd --- drivers/clk/at91/clk-system.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c index 58008b3..3f53143 100644 --- a/drivers/clk/at91/clk-system.c +++ b/drivers/clk/at91/clk-system.c @@ -138,7 +138,8 @@ at91_clk_register_system(struct at91_pmc *pmc, const char *name, clk = clk_register(NULL, &sys->hw); if (IS_ERR(clk)) { - free_irq(sys->irq, sys); + if (irq) + free_irq(sys->irq, sys); kfree(sys); } -- 2.7.4