From: Marcus Cooper <[email protected]>
Signed-off-by: Marcus Cooper <[email protected]>
---
sound/soc/sunxi/spdif/sunxi_spdif.c | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/sound/soc/sunxi/spdif/sunxi_spdif.c
b/sound/soc/sunxi/spdif/sunxi_spdif.c
index 7e76276..fe99aa0 100644
--- a/sound/soc/sunxi/spdif/sunxi_spdif.c
+++ b/sound/soc/sunxi/spdif/sunxi_spdif.c
@@ -489,11 +489,18 @@ static int sunxi_spdif_suspend(struct snd_soc_dai
*cpu_dai)
writel(reg_val, sunxi_spdif.regs + SUNXI_SPDIF_CTL);
spdifregsave();
-
- /* disable the module clock */
- clk_disable(spdif_moduleclk);
-
- clk_disable(spdif_apbclk);
+ if ((NULL == spdif_moduleclk) || (IS_ERR(spdif_moduleclk))) {
+ printk("spdif_moduleclk handle is invalid, just return\n");
+ return -EFAULT;
+ } else
+ /* disable the module clock */
+ clk_disable(spdif_moduleclk);
+
+ if ((NULL == spdif_apbclk) || (IS_ERR(spdif_apbclk))) {
+ printk("spdif_apbclk handle is invalid, just return\n");
+ return -EFAULT;
+ } else
+ clk_disable(spdif_apbclk);
printk("[SPDIF]SPECIAL CLK 0x01c20068 = %#x, line= %d\n",
*(volatile int *)0xF1C20068, __LINE__);
@@ -508,11 +515,15 @@ static int sunxi_spdif_resume(struct snd_soc_dai *cpu_dai)
u32 reg_val;
printk("[SPDIF]Enter %s\n", __func__);
- /* disable the module clock */
- clk_enable(spdif_apbclk);
+ /* enable the module clock */
+ if (clk_enable(spdif_apbclk)) {
+ printk("try to enable spdif_apbclk output failed!\n");
+ }
/* enable the module clock */
- clk_enable(spdif_moduleclk);
+ if (clk_enable(spdif_moduleclk)) {
+ printk("try to enable spdif_moduleclk output failed!\n");
+ }
spdifregrestore();
--
1.9.1
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