[PATCH v2] drivers/spi/spi.c: use DEVICE_ID_DYNAMIC when allocating a struct device_d

[Jan Luebbe]

This causes allocation of a free id and avoids conflicts if multiple
identical SPI devices are attached.

Signed-off-by: Jan Luebbe <jlu at pengutronix.de>
---
 drivers/spi/spi.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 7a8aed4..a7fe10c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -78,6 +78,8 @@ struct spi_device *spi_new_device(struct spi_master *master,
 	proxy->bits_per_word = chip->bits_per_word ? chip->bits_per_word : 8;
 	proxy->dev.platform_data = chip->platform_data;
 	strcpy(proxy->dev.name, chip->name);
+	/* allocate a free id for this chip */
+	proxy->dev.id = DEVICE_ID_DYNAMIC;
 	proxy->dev.type_data = proxy;
 	dev_add_child(master->dev, &proxy->dev);
 
-- 
1.7.9.5