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authorStefan Richter <stefanr@s5r6.in-berlin.de>2007-08-11 11:51:16 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-08-25 18:00:26 +0200
commita2ee3f9bbb0ce57102dad8928d54f59acdc4b8f7 (patch)
tree1eb83e61420815c84f3a61a802e3313267e2c2e1 /drivers/ieee1394
parentd1caeb02b17c6bc215a9a40a98a1beb92dcbd310 (diff)
downloadlinux-a2ee3f9bbb0ce57102dad8928d54f59acdc4b8f7.tar.gz
ieee1394: sbp2: fix sbp2_remove_device for error cases
Bug found by Olaf Hering <olh@suse.de>:
sbp2util_remove_command_orb_pool requires a valid lu->hi pointer.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/sbp2.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 47dbe8f17e82..a81ba8fca0db 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -513,9 +513,9 @@ static int sbp2util_create_command_orb_pool(struct sbp2_lu *lu)
 	return 0;
 }
 
-static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu)
+static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu,
+					     struct hpsb_host *host)
 {
-	struct hpsb_host *host = lu->hi->host;
 	struct list_head *lh, *next;
 	struct sbp2_command_info *cmd;
 	unsigned long flags;
@@ -922,15 +922,16 @@ static void sbp2_remove_device(struct sbp2_lu *lu)
 
 	if (!lu)
 		return;
-
 	hi = lu->hi;
+	if (!hi)
+		goto no_hi;
 
 	if (lu->shost) {
 		scsi_remove_host(lu->shost);
 		scsi_host_put(lu->shost);
 	}
 	flush_scheduled_work();
-	sbp2util_remove_command_orb_pool(lu);
+	sbp2util_remove_command_orb_pool(lu, hi->host);
 
 	list_del(&lu->lu_list);
 
@@ -971,9 +972,8 @@ static void sbp2_remove_device(struct sbp2_lu *lu)
 
 	lu->ud->device.driver_data = NULL;
 
-	if (hi)
-		module_put(hi->host->driver->owner);
-
+	module_put(hi->host->driver->owner);
+no_hi:
 	kfree(lu);
 }