diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/proc.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 48ca9ae29e16..2bf159b9c1cd 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <linux/capability.h> #include <asm/uaccess.h> #include <asm/byteorder.h> @@ -202,15 +203,18 @@ struct pci_filp_private { int write_combine; }; -static int proc_bus_pci_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { - const struct proc_dir_entry *dp = PDE(inode); + const struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); struct pci_dev *dev = dp->data; #ifdef HAVE_PCI_MMAP struct pci_filp_private *fpriv = file->private_data; #endif /* HAVE_PCI_MMAP */ int ret = 0; + lock_kernel(); + switch (cmd) { case PCIIOC_CONTROLLER: ret = pci_domain_nr(dev->bus); @@ -239,6 +243,7 @@ static int proc_bus_pci_ioctl(struct inode *inode, struct file *file, unsigned i break; }; + unlock_kernel(); return ret; } @@ -291,7 +296,7 @@ static const struct file_operations proc_bus_pci_operations = { .llseek = proc_bus_pci_lseek, .read = proc_bus_pci_read, .write = proc_bus_pci_write, - .ioctl = proc_bus_pci_ioctl, + .unlocked_ioctl = proc_bus_pci_ioctl, #ifdef HAVE_PCI_MMAP .open = proc_bus_pci_open, .release = proc_bus_pci_release, |