HiSax: fix error checking for hisax_register()]

This patch (as875) adds error-checking to the callers of hisax_register().
It also changes an error pathway in that routine, making it return an error
code rather than 0.

This fixes Bugzilla #7960.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Martin Bachem <info@colognechip.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c
index 9e088fce8c3a..7993e01f9fc5 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.c
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.c
@@ -859,7 +859,11 @@ new_adapter(void)
         for (i = 0; i < 2; i++)
                 b_if[i] = &adapter->bcs[i].b_if;
 
-        hisax_register(&adapter->isac.hisax_d_if, b_if, "fcpcipnp", protocol);
+        if (hisax_register(&adapter->isac.hisax_d_if, b_if, "fcpcipnp",
+                        protocol) != 0) {
+                kfree(adapter);
+                adapter = NULL;
+        }
 
         return adapter;
 }