[ALSA] Handle the error correctly in SNDCTL_DSP_SETFMT ioctl

Handle the error returned from snd_pcm_oss_get_formats() correctly
in SNDCTL_DSP_SETFMT ioctl handler of PCM OSS emulation.

Signed-off-by: Steven Finney <sfinney@healthhero.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index c5978d6c6080777246d989293ad2ef1684833cbb..a7567b891791e761b7e7ee7d81374e01551360ad 100644 (file)
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1242,6 +1242,8 @@ static int snd_pcm_oss_set_format(struct snd_pcm_oss_file *pcm_oss_file, int for
        
        if (format != AFMT_QUERY) {
                formats = snd_pcm_oss_get_formats(pcm_oss_file);
+               if (formats < 0)
+                       return formats;
                if (!(formats & format))
                        format = AFMT_U8;
                for (idx = 1; idx >= 0; --idx) {