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Diffstat (limited to 'arch/cris/arch-v32/drivers/i2c.c')
-rw-r--r--arch/cris/arch-v32/drivers/i2c.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/cris/arch-v32/drivers/i2c.c b/arch/cris/arch-v32/drivers/i2c.c
index 506826399ae7..2fd6a740d895 100644
--- a/arch/cris/arch-v32/drivers/i2c.c
+++ b/arch/cris/arch-v32/drivers/i2c.c
@@ -649,10 +649,10 @@ i2c_release(struct inode *inode, struct file *filp)
/* Main device API. ioctl's to write or read to/from i2c registers.
*/
-static int
-i2c_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long
+i2c_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
+ int ret;
if(_IOC_TYPE(cmd) != ETRAXI2C_IOCTYPE) {
return -ENOTTY;
}
@@ -665,9 +665,13 @@ i2c_ioctl(struct inode *inode, struct file *file,
I2C_ARGREG(arg),
I2C_ARGVALUE(arg)));
- return i2c_writereg(I2C_ARGSLAVE(arg),
+ lock_kernel();
+ ret = i2c_writereg(I2C_ARGSLAVE(arg),
I2C_ARGREG(arg),
I2C_ARGVALUE(arg));
+ unlock_kernel();
+ return ret;
+
case I2C_READREG:
{
unsigned char val;
@@ -675,7 +679,9 @@ i2c_ioctl(struct inode *inode, struct file *file,
D(printk("i2cr %d %d ",
I2C_ARGSLAVE(arg),
I2C_ARGREG(arg)));
+ lock_kernel();
val = i2c_readreg(I2C_ARGSLAVE(arg), I2C_ARGREG(arg));
+ unlock_kernel();
D(printk("= %d\n", val));
return val;
}
@@ -688,10 +694,10 @@ i2c_ioctl(struct inode *inode, struct file *file,
}
static const struct file_operations i2c_fops = {
- .owner = THIS_MODULE,
- .ioctl = i2c_ioctl,
- .open = i2c_open,
- .release = i2c_release,
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = i2c_ioctl,
+ .open = i2c_open,
+ .release = i2c_release,
};
static int __init i2c_init(void)

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