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synclink series: Prepare for BKL pushdown

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As these are quite complex I've simply pushed the BKL down into the ioctl
handler not tried to do anything neater.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
2008-04-30 00:53:24 -07:00
committed by Linus Torvalds
parent 341339e7af
commit 1f8cabb705
3 changed files with 55 additions and 21 deletions
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6
drivers/char/synclink.c
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@@ -2942,6 +2942,7 @@ static int mgsl_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
struct mgsl_struct * info = (struct mgsl_struct *)tty->driver_data;
int ret;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_ioctl %s cmd=%08X\n", __FILE__,__LINE__,
@@ -2956,7 +2957,10 @@ static int mgsl_ioctl(struct tty_struct *tty, struct file * file,
return -EIO;
}
return mgsl_ioctl_common(info, cmd, arg);
lock_kernel();
ret = mgsl_ioctl_common(info, cmd, arg);
unlock_kernel();
return ret;
}
static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)