[patch 13/26] ALSA: hdsp - Fix zero division

[Greg Kroah-Hartman]

2.6.22-stable review patch.  If anyone has any objections, please let us
know.

------------------
From: Takashi Iwai <tiwai@xxxxxxx>

patch 2a3988f6d2c5be9d02463097775d1c66a8290527 in mainline.

Fix zero-division bug in the calculation dds offset.

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Jaroslav Kysela <perex@xxxxxxxx>
Cc: Maarten Bressers <mbressers@xxxxxxxxx>
Cc: gentoo kernel <kernel@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 sound/pci/rme9652/hdsp.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -3108,6 +3108,9 @@ static int hdsp_dds_offset(struct hdsp *
 	unsigned int dds_value = hdsp->dds_value;
 	int system_sample_rate = hdsp->system_sample_rate;
 
+	if (!dds_value)
+		return 0;
+
 	n = DDS_NUMERATOR;
 	/*
 	 * dds_value = n / rate

-- 
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