clk: at91: do not leak resources

Do not leak memory and free irqs in case of an error.

Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index 152dcb3..61566bc 100644 (file)
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -116,8 +116,10 @@ void __init of_sama5d4_clk_h32mx_setup(struct device_node *np,
        h32mxclk->pmc = pmc;
 
        clk = clk_register(NULL, &h32mxclk->hw);
-       if (!clk)
+       if (!clk) {
+               kfree(h32mxclk);
                return;
+       }
 
        of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }

diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index c240045..27dfa96 100644 (file)
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -171,8 +171,10 @@ at91_clk_register_main_osc(struct at91_pmc *pmc,
        irq_set_status_flags(osc->irq, IRQ_NOAUTOEN);
        ret = request_irq(osc->irq, clk_main_osc_irq_handler,
                          IRQF_TRIGGER_HIGH, name, osc);
-       if (ret)
+       if (ret) {
+               kfree(osc);
                return ERR_PTR(ret);
+       }
 
        if (bypass)
                pmc_write(pmc, AT91_CKGR_MOR,

diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index f98eafe..5b3ded5 100644 (file)
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -165,12 +165,16 @@ at91_clk_register_master(struct at91_pmc *pmc, unsigned int irq,
        irq_set_status_flags(master->irq, IRQ_NOAUTOEN);
        ret = request_irq(master->irq, clk_master_irq_handler,
                          IRQF_TRIGGER_HIGH, "clk-master", master);
-       if (ret)
+       if (ret) {
+               kfree(master);
                return ERR_PTR(ret);
+       }
 
        clk = clk_register(NULL, &master->hw);
-       if (IS_ERR(clk))
+       if (IS_ERR(clk)) {
+               free_irq(master->irq, master);
                kfree(master);
+       }
 
        return clk;
 }

diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c
index 6ec79db..23163be 100644 (file)
--- a/drivers/clk/at91/clk-pll.c
+++ b/drivers/clk/at91/clk-pll.c
@@ -338,12 +338,16 @@ at91_clk_register_pll(struct at91_pmc *pmc, unsigned int irq, const char *name,
        irq_set_status_flags(pll->irq, IRQ_NOAUTOEN);
        ret = request_irq(pll->irq, clk_pll_irq_handler, IRQF_TRIGGER_HIGH,
                          id ? "clk-pllb" : "clk-plla", pll);
-       if (ret)
+       if (ret) {
+               kfree(pll);
                return ERR_PTR(ret);
+       }
 
        clk = clk_register(NULL, &pll->hw);
-       if (IS_ERR(clk))
+       if (IS_ERR(clk)) {
+               free_irq(pll->irq, pll);
                kfree(pll);
+       }
 
        return clk;
 }

diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
index a76d03f..58008b3 100644 (file)
--- a/drivers/clk/at91/clk-system.c
+++ b/drivers/clk/at91/clk-system.c
@@ -130,13 +130,17 @@ at91_clk_register_system(struct at91_pmc *pmc, const char *name,
                irq_set_status_flags(sys->irq, IRQ_NOAUTOEN);
                ret = request_irq(sys->irq, clk_system_irq_handler,
                                IRQF_TRIGGER_HIGH, name, sys);
-               if (ret)
+               if (ret) {
+                       kfree(sys);
                        return ERR_PTR(ret);
+               }
        }
 
        clk = clk_register(NULL, &sys->hw);
-       if (IS_ERR(clk))
+       if (IS_ERR(clk)) {
+               free_irq(sys->irq, sys);
                kfree(sys);
+       }
 
        return clk;
 }

diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c
index ae3263b..30dd697 100644 (file)
--- 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;
 }