diff options
| author |   Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:50:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:50:34 +0200 |
| commit | a208f37a465e222218974ab20a31b42b7b4893b2 (patch) | |
| tree | 77c6acdd4be32024330a14f2618b814126ce7a20 /drivers/char/vc_screen.c | |
| parent | x86: apic_ops for lguest (diff) | |
| parent | Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 (diff) | |
| download | linux-dev-a208f37a465e222218974ab20a31b42b7b4893b2.tar.xz linux-dev-a208f37a465e222218974ab20a31b42b7b4893b2.zip | |
Merge branch 'linus' into x86/x2apic
Diffstat (limited to 'drivers/char/vc_screen.c')
| -rw-r--r-- | drivers/char/vc_screen.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c index 83aeedda200c..eebfad2777d2 100644 --- a/drivers/char/vc_screen.c +++ b/drivers/char/vc_screen.c @@ -34,6 +34,7 @@ #include <linux/kbd_kern.h> #include <linux/console.h> #include <linux/device.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/byteorder.h> @@ -460,9 +461,13 @@ static int vcs_open(struct inode *inode, struct file *filp) { unsigned int currcons = iminor(inode) & 127; + int ret = 0; + + lock_kernel(); if(currcons && !vc_cons_allocated(currcons-1)) - return -ENXIO; - return 0; + ret = -ENXIO; + unlock_kernel(); + return ret; } static const struct file_operations vcs_fops = { |