[PATCH] ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl

[Takashi Iwai <tiwai@suse.de>]

The update of rate_num/den and msbits were factored out to
fixup_unreferenced_params() function to be called explicitly after the
hw_refine or hw_params procedure.  It's called from
snd_pcm_hw_refine_user(), but it's forgotten in the PCM compat ioctl.
This ended up with the incomplete rate_num/den and msbits parameters
when 32bit compat ioctl is used.

This patch adds the missing call in snd_pcm_ioctl_hw_params_compat().

Reported-by: Meng_Cai@novatek.com.cn
Fixes: f9a076bff053 ("ALSA: pcm: calculate non-mask/non-interval parameters always when possible")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_compat.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 42c2ada8e888..c96483091f30 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -253,10 +253,14 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
 		goto error;
 	}
 
-	if (refine)
+	if (refine) {
 		err = snd_pcm_hw_refine(substream, data);
-	else
+		if (err < 0)
+			goto error;
+		err = fixup_unreferenced_params(substream, data);
+	} else {
 		err = snd_pcm_hw_params(substream, data);
+	}
 	if (err < 0)
 		goto error;
 	if (copy_to_user(data32, data, sizeof(*data32)) ||
-- 
2.35.3