#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/poll.h>
+#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#ifdef PCMCIA_DEBUG
-#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
+#define reader_to_dev(x) (&handle_to_dev(x->p_dev))
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0600);
#define DEBUGP(n, rdr, x, args...) do { \
if (pc_debug >= (n)) \
dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
- __FUNCTION__ , ##args); \
+ __func__ , ##args); \
} while (0)
#else
#define DEBUGP(n, rdr, x, args...)
struct reader_dev *dev;
struct pcmcia_device *link;
int minor = iminor(inode);
+ int ret;
if (minor >= CM_MAX_DEV)
return -ENODEV;
+ lock_kernel();
link = dev_table[minor];
- if (link == NULL || !pcmcia_dev_present(link))
- return -ENODEV;
+ if (link == NULL || !pcmcia_dev_present(link)) {
+ ret = -ENODEV;
+ goto out;
+ }
- if (link->open)
- return -EBUSY;
+ if (link->open) {
+ ret = -EBUSY;
+ goto out;
+ }
dev = link->priv;
filp->private_data = dev;
if (filp->f_flags & O_NONBLOCK) {
DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto out;
}
link->open = 1;
mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);
DEBUGP(2, dev, "<- cm4040_open (successfully)\n");
- return nonseekable_open(inode, filp);
+ ret = nonseekable_open(inode, filp);
+out:
+ unlock_kernel();
+ return ret;
}
static int cm4040_close(struct inode *inode, struct file *filp)