[PATCH 6/6] clk: at91: clk-utmi: fix error path

From: David Dueck
Date: Fri Jun 26 2015 - 08:34:56 EST


Do not leak memory if request_irq fails and free the irq if
clk_register fails.

Signed-off-by: David Dueck <davidcdueck@xxxxxxxxxxxxxx>
---
drivers/clk/at91/clk-utmi.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c
index ae3263b..30dd697 100644
--- a/drivers/clk/at91/clk-utmi.c
+++ b/drivers/clk/at91/clk-utmi.c
@@ -118,12 +118,16 @@ at91_clk_register_utmi(struct at91_pmc *pmc, unsigned int irq,
irq_set_status_flags(utmi->irq, IRQ_NOAUTOEN);
ret = request_irq(utmi->irq, clk_utmi_irq_handler,
IRQF_TRIGGER_HIGH, "clk-utmi", utmi);
- if (ret)
+ if (ret) {
+ kfree(utmi);
return ERR_PTR(ret);
+ }

clk = clk_register(NULL, &utmi->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ free_irq(utmi->irq, utmi);
kfree(utmi);
+ }

return clk;
}
--
2.4.4

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