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authorJarkko Nikula <jarkko.nikula@nokia.com>2008-08-26 13:32:57 +0300
committerTakashi Iwai <tiwai@suse.de>2008-08-26 12:44:03 +0200
commite784539fe81490a982a013621d39a60c4fce427e (patch)
tree1d809f790fe19a8faf46c9baa1da7dcf8b983a04
parent3d839e5b87a70effc629c1cdbf77d837ef141919 (diff)
downloadop-kernel-dev-e784539fe81490a982a013621d39a60c4fce427e.zip
op-kernel-dev-e784539fe81490a982a013621d39a60c4fce427e.tar.gz
ALSA: ASoC: Fix error paths in N810 machine driver init and release clocks at exit
Thanks to Felipe Balbi <felipe.balbi@nokia.com> by noticing that if clk_get to sys_clkout2_src fails, then n810_snd_device is never released. Add also sys_clkout2_src release into error path, error code return and release the clocks at exit. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/soc/omap/n810.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c
index 7694621..87d0ed0 100644
--- a/sound/soc/omap/n810.c
+++ b/sound/soc/omap/n810.c
@@ -329,12 +329,14 @@ static int __init n810_soc_init(void)
sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
if (IS_ERR(sys_clkout2_src)) {
dev_err(dev, "Could not get sys_clkout2_src clock\n");
- return -ENODEV;
+ err = PTR_ERR(sys_clkout2_src);
+ goto err2;
}
sys_clkout2 = clk_get(dev, "sys_clkout2");
if (IS_ERR(sys_clkout2)) {
dev_err(dev, "Could not get sys_clkout2\n");
- goto err1;
+ err = PTR_ERR(sys_clkout2);
+ goto err3;
}
/*
* Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
@@ -343,7 +345,8 @@ static int __init n810_soc_init(void)
func96m_clk = clk_get(dev, "func_96m_ck");
if (IS_ERR(func96m_clk)) {
dev_err(dev, "Could not get func 96M clock\n");
- goto err2;
+ err = PTR_ERR(func96m_clk);
+ goto err4;
}
clk_set_parent(sys_clkout2_src, func96m_clk);
clk_set_rate(sys_clkout2, 12000000);
@@ -356,20 +359,25 @@ static int __init n810_soc_init(void)
gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
return 0;
-err2:
+err4:
clk_put(sys_clkout2);
+err3:
+ clk_put(sys_clkout2_src);
+err2:
platform_device_del(n810_snd_device);
err1:
platform_device_put(n810_snd_device);
return err;
-
}
static void __exit n810_soc_exit(void)
{
gpio_free(N810_SPEAKER_AMP_GPIO);
gpio_free(N810_HEADSET_AMP_GPIO);
+ clk_put(sys_clkout2_src);
+ clk_put(sys_clkout2);
+ clk_put(func96m_clk);
platform_device_unregister(n810_snd_device);
}
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