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authorChandra Seetharaman <sekharan@us.ibm.com>2008-05-24 05:16:40 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-15 18:16:43 +0400
commitfe9233fb6914a0eb20166c967e3020f7f0fba2c9 (patch)
tree45d6f25301e41ff9323f2eee20fce6ae341cda7f /drivers/md/dm-mpath.c
parentd7f305e9a08040649b0800245e67708df58cdb55 (diff)
downloadlinux-fe9233fb6914a0eb20166c967e3020f7f0fba2c9.tar.xz
[SCSI] scsi_dh: fix kconfig related build errors
Do not automatically "select" SCSI_DH for dm-multipath. If SCSI_DH doesn't exist,just do not allow hardware handlers to be used. Handle SCSI_DH being a module also. Make sure it doesn't allow DM_MULTIPATH to be compiled in when SCSI_DH is a module. [jejb: added comment for Kconfig syntax] Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r--drivers/md/dm-mpath.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index e8f704aa46f2..9f7302d4878d 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -664,6 +664,8 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m)
request_module("scsi_dh_%s", m->hw_handler_name);
if (scsi_dh_handler_exist(m->hw_handler_name) == 0) {
ti->error = "unknown hardware handler type";
+ kfree(m->hw_handler_name);
+ m->hw_handler_name = NULL;
return -EINVAL;
}
consume(as, hw_argc - 1);