[SCSI] target: Convert rd_build_device_space() to use errno

This patch converts rd_build_device_space() to return errno usage
for failures in rd_create_virtdevice().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index f36094f0596..7837dd365a9 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -150,7 +150,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
         if (rd_dev->rd_page_count <= 0) {
                 printk(KERN_ERR "Illegal page count: %u for Ramdisk device\n",
                         rd_dev->rd_page_count);
-                return -1;
+                return -EINVAL;
         }
         total_sg_needed = rd_dev->rd_page_count;
 
@@ -160,7 +160,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
         if (!(sg_table)) {
                 printk(KERN_ERR "Unable to allocate memory for Ramdisk"
                         " scatterlist tables\n");
-                return -1;
+                return -ENOMEM;
         }
 
         rd_dev->sg_table_array = sg_table;
@@ -175,7 +175,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
                 if (!(sg)) {
                         printk(KERN_ERR "Unable to allocate scatterlist array"
                                 " for struct rd_dev\n");
-                        return -1;
+                        return -ENOMEM;
                 }
 
                 sg_init_table((struct scatterlist *)&sg[0], sg_per_table);
@@ -191,7 +191,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
                         if (!(pg)) {
                                 printk(KERN_ERR "Unable to allocate scatterlist"
                                         " pages for struct rd_dev_sg_table\n");
-                                return -1;
+                                return -ENOMEM;
                         }
                         sg_assign_page(&sg[j], pg);
                         sg[j].length = PAGE_SIZE;
@@ -253,15 +253,14 @@ static struct se_device *rd_create_virtdevice(
         struct se_dev_limits dev_limits;
         struct rd_dev *rd_dev = p;
         struct rd_host *rd_host = hba->hba_ptr;
-        int dev_flags = 0, ret = -EINVAL;
+        int dev_flags = 0, ret;
         char prod[16], rev[4];
 
         memset(&dev_limits, 0, sizeof(struct se_dev_limits));
 
-        if (rd_build_device_space(rd_dev) < 0) {
-                ret = -ENOMEM;
+        ret = rd_build_device_space(rd_dev);
+        if (ret < 0)
                 goto fail;
-        }
 
         snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP");
         snprintf(rev, 4, "%s", (rd_dev->rd_direct) ? RD_DR_VERSION :