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Subject[PATCH 09/21] target: Convert rd_build_device_space() to use errno
Date
From: Dan Carpenter <error27@gmail.com>

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>
---
drivers/target/target_core_rd.c | 15 +++++++--------
1 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 0d0a583..663177e 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -151,7 +151,7 @@ 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;

@@ -161,7 +161,7 @@ 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;
@@ -176,7 +176,7 @@ 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);
@@ -192,7 +192,7 @@ 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;
@@ -254,15 +254,14 @@ 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 :
--
1.7.4.1


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