[PATCH 4/5] [SCSI] Do not use platform_bus as a parent

Pawel Moll pawel.moll at arm.com
Fri Jul 25 07:23:52 PDT 2014

The host devices without a parent were "forcefully adopted"
by platform bus. This patch removes this assignment. In
effect the dev_dev may be NULL now, which means ISA.

Cc: James E.J. Bottomley <JBottomley at parallels.com>
Cc: linux-scsi at vger.kernel.org
Signed-off-by: Pawel Moll <pawel.moll at arm.com>

This patch is a part of effort to remove references to platform_bus
and make it static.

James, could you please have a look and advice if the change is
correct? Would you happen to know the "real reasons" behind
using the root platform_bus device a parent?

 drivers/scsi/hosts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 3cbb57a..0c7389f 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -218,7 +218,7 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev,
 		goto fail;
 	if (!shost->shost_gendev.parent)
-		shost->shost_gendev.parent = dev ? dev : &platform_bus;
+		shost->shost_gendev.parent = dev;
 	if (!dma_dev)
 		dma_dev = shost->shost_gendev.parent;

More information about the linux-arm-kernel mailing list