This patch adds error handling for clk_set_rate calls in the set_audio_clock_rate function of the smdk_spdif.c file. Previously, the return value of clk_set_rate was not checked, which could potentially lead to unhandled errors in setting the audio clock rate. This change ensures that if clk_set_rate fails, the error is properly reported and handled.

Signed-off-by: Haoran Liu liuhaoran14@163.com --- sound/soc/samsung/smdk_spdif.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/sound/soc/samsung/smdk_spdif.c b/sound/soc/samsung/smdk_spdif.c index 2474eb619882..c31b82b89148 100644 --- a/sound/soc/samsung/smdk_spdif.c +++ b/sound/soc/samsung/smdk_spdif.c @@ -75,6 +75,7 @@ static int set_audio_clock_rate(unsigned long epll_rate, unsigned long audio_rate) { struct clk *fout_epll, *sclk_spdif; + int ret;

fout_epll = clk_get(NULL, "fout_epll"); if (IS_ERR(fout_epll)) { @@ -82,7 +83,14 @@ static int set_audio_clock_rate(unsigned long epll_rate, return -ENOENT; }

- clk_set_rate(fout_epll, epll_rate); + ret = clk_set_rate(fout_epll, epll_rate); + if (ret) { + printk(KERN_ERR "%s: failed to set rate for fout_epll\n", + __func__); + clk_put(fout_epll); + return ret; + } + clk_put(fout_epll);

sclk_spdif = clk_get(NULL, "sclk_spdif"); @@ -91,7 +99,15 @@ static int set_audio_clock_rate(unsigned long epll_rate, return -ENOENT; }

- clk_set_rate(sclk_spdif, audio_rate); + ret = clk_set_rate(sclk_spdif, audio_rate); + if (ret) { + printk(KERN_ERR "%s: failed to set rate for sclk_spdif\n", + __func__); + clk_put(sclk_spdif); + clk_put(fout_epll); + return ret; + } + clk_put(sclk_spdif);

return 0;