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path: root/drivers/scsi/sg.c
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Diffstat (limited to 'drivers/scsi/sg.c')
-rw-r--r--drivers/scsi/sg.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4e607d3065b..65eef33846b 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1401,6 +1401,7 @@ sg_add(struct class_device *cl_dev, struct class_interface *cl_intf)
Sg_device *sdp = NULL;
struct cdev * cdev = NULL;
int error, k;
+ unsigned long iflags;
disk = alloc_disk(1);
if (!disk) {
@@ -1428,7 +1429,7 @@ sg_add(struct class_device *cl_dev, struct class_interface *cl_intf)
error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, k), 1);
if (error)
- goto out;
+ goto cdev_add_err;
sdp->cdev = cdev;
if (sg_sysfs_valid) {
@@ -1455,6 +1456,13 @@ sg_add(struct class_device *cl_dev, struct class_interface *cl_intf)
return 0;
+cdev_add_err:
+ write_lock_irqsave(&sg_dev_arr_lock, iflags);
+ kfree(sg_dev_arr[k]);
+ sg_dev_arr[k] = NULL;
+ sg_nr_dev--;
+ write_unlock_irqrestore(&sg_dev_arr_lock, iflags);
+
out:
put_disk(disk);
if (cdev)