spi: Add "spi:" prefix to modalias attribute of spi devices

The modalias attribute of spi devices doesn't have the "spi:" prefix
that is used in the UEVENT and in spi device drivers.  This patch adds
the prefix so the modprobe can correctly match modules to devices.

Reported-by: David Daney <david.daney@cavium.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 1041cb83d67a28940e76aff953986a823d918412..84c2861d6f4dde2a602e44f292c6efbd248c602b 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -53,7 +53,7 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf)
 {
        const struct spi_device *spi = to_spi_device(dev);
 
-       return sprintf(buf, "%s\n", spi->modalias);
+       return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias);
 }
 
 static struct device_attribute spi_dev_attrs[] = {