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path: root/drivers/mtd/mtdchar.c
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Diffstat (limited to 'drivers/mtd/mtdchar.c')
-rw-r--r--drivers/mtd/mtdchar.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index d1ffd24..6f04458 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1,5 +1,5 @@
/*
- * $Id: mtdchar.c,v 1.75 2005/11/06 10:04:37 gleixner Exp $
+ * $Id: mtdchar.c,v 1.76 2005/11/07 11:14:20 gleixner Exp $
*
* Character-device access to raw MTD devices.
*
@@ -28,7 +28,7 @@ static void mtd_notify_add(struct mtd_info* mtd)
class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
NULL, "mtd%d", mtd->index);
-
+
class_device_create(mtd_class, NULL,
MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
NULL, "mtd%dro", mtd->index);
@@ -108,23 +108,23 @@ static int mtd_open(struct inode *inode, struct file *file)
return -EACCES;
mtd = get_mtd_device(NULL, devnum);
-
+
if (!mtd)
return -ENODEV;
-
+
if (MTD_ABSENT == mtd->type) {
put_mtd_device(mtd);
return -ENODEV;
}
file->private_data = mtd;
-
+
/* You can't open it RW if it's not a writeable device */
if ((file->f_mode & 2) && !(mtd->flags & MTD_WRITEABLE)) {
put_mtd_device(mtd);
return -EACCES;
}
-
+
return 0;
} /* mtd_open */
@@ -137,10 +137,10 @@ static int mtd_close(struct inode *inode, struct file *file)
DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n");
mtd = TO_MTD(file);
-
+
if (mtd->sync)
mtd->sync(mtd);
-
+
put_mtd_device(mtd);
return 0;
@@ -159,7 +159,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
int ret=0;
int len;
char *kbuf;
-
+
DEBUG(MTD_DEBUG_LEVEL0,"MTD_read\n");
if (*ppos + count > mtd->size)
@@ -167,11 +167,11 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
if (!count)
return 0;
-
+
/* FIXME: Use kiovec in 2.5 to lock down the user's buffers
and pass them directly to the MTD functions */
while (count) {
- if (count > MAX_KMALLOC_SIZE)
+ if (count > MAX_KMALLOC_SIZE)
len = MAX_KMALLOC_SIZE;
else
len = count;
@@ -179,7 +179,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
kbuf=kmalloc(len,GFP_KERNEL);
if (!kbuf)
return -ENOMEM;
-
+
switch (MTD_MODE(file)) {
case MTD_MODE_OTP_FACT:
ret = mtd->read_fact_prot_reg(mtd, *ppos, len, &retlen, kbuf);
@@ -192,7 +192,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
}
/* Nand returns -EBADMSG on ecc errors, but it returns
* the data. For our userspace tools it is important
- * to dump areas with ecc errors !
+ * to dump areas with ecc errors !
* Userspace software which accesses NAND this way
* must be aware of the fact that it deals with NAND
*/
@@ -214,7 +214,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
kfree(kbuf);
return ret;
}
-
+
kfree(kbuf);
}
@@ -231,10 +231,10 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
int len;
DEBUG(MTD_DEBUG_LEVEL0,"MTD_write\n");
-
+
if (*ppos == mtd->size)
return -ENOSPC;
-
+
if (*ppos + count > mtd->size)
count = mtd->size - *ppos;
@@ -242,7 +242,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
return 0;
while (count) {
- if (count > MAX_KMALLOC_SIZE)
+ if (count > MAX_KMALLOC_SIZE)
len = MAX_KMALLOC_SIZE;
else
len = count;
@@ -257,7 +257,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
kfree(kbuf);
return -EFAULT;
}
-
+
switch (MTD_MODE(file)) {
case MTD_MODE_OTP_FACT:
ret = -EROFS;
@@ -282,7 +282,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
kfree(kbuf);
return ret;
}
-
+
kfree(kbuf);
}
@@ -306,7 +306,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
void __user *argp = (void __user *)arg;
int ret = 0;
u_long size;
-
+
DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n");
size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT;
@@ -318,7 +318,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
if (!access_ok(VERIFY_WRITE, argp, size))
return -EFAULT;
}
-
+
switch (cmd) {
case MEMGETREGIONCOUNT:
if (copy_to_user(argp, &(mtd->numeraseregions), sizeof(int)))
@@ -370,11 +370,11 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
erase->mtd = mtd;
erase->callback = mtdchar_erase_callback;
erase->priv = (unsigned long)&waitq;
-
+
/*
FIXME: Allow INTERRUPTIBLE. Which means
not having the wait_queue head on the stack.
-
+
If the wq_head is on the stack, and we
leave because we got interrupted, then the
wq_head is no longer there when the
@@ -402,13 +402,13 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
struct mtd_oob_buf buf;
void *databuf;
ssize_t retlen;
-
+
if(!(file->f_mode & 2))
return -EPERM;
if (copy_from_user(&buf, argp, sizeof(struct mtd_oob_buf)))
return -EFAULT;
-
+
if (buf.length > 0x4096)
return -EINVAL;
@@ -424,7 +424,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
databuf = kmalloc(buf.length, GFP_KERNEL);
if (!databuf)
return -ENOMEM;
-
+
if (copy_from_user(databuf, buf.ptr, buf.length)) {
kfree(databuf);
return -EFAULT;
@@ -448,7 +448,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
if (copy_from_user(&buf, argp, sizeof(struct mtd_oob_buf)))
return -EFAULT;
-
+
if (buf.length > 0x4096)
return -EINVAL;
@@ -464,14 +464,14 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
databuf = kmalloc(buf.length, GFP_KERNEL);
if (!databuf)
return -ENOMEM;
-
+
ret = (mtd->read_oob)(mtd, buf.start, buf.length, &retlen, databuf);
if (put_user(retlen, (uint32_t __user *)argp))
ret = -EFAULT;
else if (retlen && copy_to_user(buf.ptr, databuf, retlen))
ret = -EFAULT;
-
+
kfree(databuf);
break;
}
@@ -521,7 +521,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
case MEMGETBADBLOCK:
{
loff_t offs;
-
+
if (copy_from_user(&offs, argp, sizeof(loff_t)))
return -EFAULT;
if (!mtd->block_isbad)
generated by cgit v1.1 at 2024-05-20 01:49:10 +0000