There was too small buffers requested in worst case.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/staging/media/msi3101/sdr-msi3101.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c
b/drivers/staging/media/msi3101/sdr-msi3101.c
index 7715c85..4c3bf77 100644
--- a/drivers/staging/media/msi3101/sdr-msi3101.c
+++ b/drivers/staging/media/msi3101/sdr-msi3101.c
@@ -1131,7 +1131,13 @@ static int msi3101_queue_setup(struct vb2_queue *vq,
/* Absolute min and max number of buffers available for mmap() */
*nbuffers = 32;
*nplanes = 1;
- sizes[0] = PAGE_ALIGN(3 * 3072); /* 3 * 768 * 4 */
+ /*
+ * 3, wMaxPacketSize 3x 1024 bytes
+ * 504, max IQ sample pairs per 1024 frame
+ * 2, two samples, I and Q
+ * 4, 32-bit float
+ */
+ sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */
dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
__func__, *nbuffers, sizes[0]);
return 0;
--
1.7.11.7
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