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authorAlan Cox <alan@linux.intel.com>2010-06-01 22:52:48 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 13:47:40 -0700
commit7cc34fd028ef35b12fec0fa9268c37c099d33bd2 (patch)
treed31500ec5bd0e241ab8ba3caf83e9894cd367a88 /drivers/char/epca.c
parent25c3cdf80c73156e910a322aba468ddaca0b91ae (diff)
epca: Kill the big kernel lock
The lock is no longer needed for wait until sent paths so this can go Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/epca.c')
-rw-r--r--drivers/char/epca.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 6f5ffe1320f..d9df46aa0fb 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -36,7 +36,7 @@
#include <linux/ctype.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
-#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
@@ -2105,7 +2105,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file,
break;
case DIGI_SETAW:
case DIGI_SETAF:
- lock_kernel();
if (cmd == DIGI_SETAW) {
/* Setup an event to indicate when the transmit
buffer empties */
@@ -2118,7 +2117,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file,
if (tty->ldisc->ops->flush_buffer)
tty->ldisc->ops->flush_buffer(tty);
}
- unlock_kernel();
/* Fall Thru */
case DIGI_SETA:
if (copy_from_user(&ch->digiext, argp, sizeof(digi_t)))