[PATCH 02/16] clk: at91: system: don't try to free_irq when there is no IRQ

[Alexandre Belloni]

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 <alexandre.bell...@free-electrons.com>
---
 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 58008b3e8bc1..3f5314344286 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);
        }
 
-- 
2.1.4

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