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authorGreg Edwards <edwardsg@sgi.com>2005-09-29 00:05:19 +0200
committerTony Luck <tony.luck@intel.com>2005-10-04 18:39:18 +0200
commit96f339c6b95344942fe5fce012ff4f2a3b2cb80d (patch)
treec83a3ecd44d161becb4fe29cbbcdffc6f2f29dbb
parent[TG3]: Update driver version and release date. (diff)
downloadlinux-96f339c6b95344942fe5fce012ff4f2a3b2cb80d.tar.xz
linux-96f339c6b95344942fe5fce012ff4f2a3b2cb80d.zip
[IA64] mbcs_init() should give up unless running on sn2
CONFIG_SGI_MBCS is enabled in generic kernels, but the driver may oops some other platforms. Check whether we are running on sn2 and bail out if we are not before doing anything dangerous. Acked-by: Bruce Losure <blosure@americas.sgi.com> Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
-rw-r--r--drivers/char/mbcs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 3fa64c631108..c268ee04b2aa 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -830,6 +830,9 @@ static int __init mbcs_init(void)
{
int rv;
+ if (!ia64_platform_is("sn2"))
+ return -ENODEV;
+
// Put driver into chrdevs[]. Get major number.
rv = register_chrdev(mbcs_major, DEVICE_NAME, &mbcs_ops);
if (rv < 0) {