[PATCH 8/12] powerpc: assign PDE->data before gluing PDE into /proc tree

From: Denis V. Lunev
Date: Tue Apr 29 2008 - 07:24:31 EST


Simply replace proc_create and further data assigned with proc_create_data.
No need to check for data!=NULL after that.

Signed-off-by: Denis V. Lunev <den@xxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxxx>
---
arch/powerpc/platforms/pseries/scanlog.c | 19 ++-----------------
1 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index e5b0ea8..7a76f63 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -57,11 +57,6 @@ static ssize_t scanlog_read(struct file *file, char __user *buf,
dp = PDE(inode);
data = (unsigned int *)dp->data;

- if (!data) {
- printk(KERN_ERR "scanlog: read failed no data\n");
- return -EIO;
- }
-
if (count > RTAS_DATA_BUF_SIZE)
count = RTAS_DATA_BUF_SIZE;

@@ -153,11 +148,6 @@ static int scanlog_open(struct inode * inode, struct file * file)
struct proc_dir_entry *dp = PDE(inode);
unsigned int *data = (unsigned int *)dp->data;

- if (!data) {
- printk(KERN_ERR "scanlog: open failed no data\n");
- return -EIO;
- }
-
if (data[0] != 0) {
/* This imperfect test stops a second copy of the
* data (or a reset while data is being copied)
@@ -175,10 +165,6 @@ static int scanlog_release(struct inode * inode, struct file * file)
struct proc_dir_entry *dp = PDE(inode);
unsigned int *data = (unsigned int *)dp->data;

- if (!data) {
- printk(KERN_ERR "scanlog: release failed no data\n");
- return -EIO;
- }
data[0] = 0;

return 0;
@@ -207,12 +193,11 @@ static int __init scanlog_init(void)
if (!data)
goto err;

- ent = proc_create("ppc64/rtas/scan-log-dump", S_IRUSR, NULL,
- &scanlog_fops);
+ ent = proc_create_data("ppc64/rtas/scan-log-dump", S_IRUSR, NULL,
+ &scanlog_fops, data);
if (!ent)
goto err;

- ent->data = data;
proc_ppc64_scan_log_dump = ent;

return 0;
--
1.5.3.rc5

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