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| author | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-30 12:35:11 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-30 12:35:11 +0100 |
| commit | 67577927e8d7a1f4b09b4992df640eadc6aacb36 (patch) | |
| tree | 2e9efe6b5745965faf0dcc084d4613d9356263f9 /drivers/char/ppdev.c | |
| parent | 6fe4c590313133ebd5dadb769031489ff178ece1 (diff) | |
| parent | 51f00a471ce8f359627dd99aeac322947a0e491b (diff) | |
| download | linux-67577927e8d7a1f4b09b4992df640eadc6aacb36.tar.bz2 | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts:
drivers/mtd/mtd_blkdevs.c
Merge Grant's device-tree bits so that we can apply the subsequent fixes.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/char/ppdev.c')
| -rw-r--r-- | drivers/char/ppdev.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index 02abfddce45a..723152d978a9 100644 --- a/drivers/char/ppdev.c +++ b/drivers/char/ppdev.c @@ -67,7 +67,7 @@ #include <linux/slab.h> #include <linux/major.h> #include <linux/ppdev.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/uaccess.h> #define PP_VERSION "ppdev: user-space parallel port driver" @@ -97,6 +97,7 @@ struct pp_struct { /* ROUND_UP macro from fs/select.c */ #define ROUND_UP(x,y) (((x)+(y)-1)/(y)) +static DEFINE_MUTEX(pp_do_mutex); static inline void pp_enable_irq (struct pp_struct *pp) { struct parport *port = pp->pdev->port; @@ -630,9 +631,9 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg) static long pp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { long ret; - lock_kernel(); + mutex_lock(&pp_do_mutex); ret = pp_do_ioctl(file, cmd, arg); - unlock_kernel(); + mutex_unlock(&pp_do_mutex); return ret; } @@ -641,7 +642,6 @@ static int pp_open (struct inode * inode, struct file * file) unsigned int minor = iminor(inode); struct pp_struct *pp; - cycle_kernel_lock(); if (minor >= PARPORT_MAX) return -ENXIO; |