[PATCH] capi: register_chrdev() fix

If the user specified `major=0' (odd thing to do), capi.c will use dynamic
allocation.  We need to pick up that major for subsequent unregister_chrdev().

Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 623adbb0d13a..9b493f0becc4 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -1485,6 +1485,7 @@ static int __init capi_init(void)
 {
         char *p;
         char *compileinfo;
+        int major_ret;
 
         if ((p = strchr(revision, ':')) != 0 && p[1]) {
                 strlcpy(rev, p + 2, sizeof(rev));
@@ -1493,11 +1494,12 @@ static int __init capi_init(void)
         } else
                 strcpy(rev, "1.0");
 
-        if (register_chrdev(capi_major, "capi20", &capi_fops)) {
+        major_ret = register_chrdev(capi_major, "capi20", &capi_fops);
+        if (major_ret < 0) {
                 printk(KERN_ERR "capi20: unable to get major %d\n", capi_major);
-                return -EIO;
+                return major_ret;
         }
-
+        capi_major = major_ret;
         capi_class = class_create(THIS_MODULE, "capi");
         if (IS_ERR(capi_class)) {
                 unregister_chrdev(capi_major, "capi20");