[IA64] correct file descriptor reference counting in perfmon

Fix a bug in sys_perfmonctl() whereby it was not correctly
decrementing the file descriptor reference count.

Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index c7ccd6ee1ddf..84a7e52f56f6 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -4936,13 +4936,15 @@ abort_locked:
         if (likely(ctx)) {
                 DPRINT(("context unlocked\n"));
                 UNPROTECT_CTX(ctx, flags);
-                fput(file);
         }
 
         /* copy argument back to user, if needed */
         if (call_made && PFM_CMD_RW_ARG(cmd) && copy_to_user(arg, args_k, base_sz*count)) ret = -EFAULT;
 
 error_args:
+        if (file)
+                fput(file);
+
         kfree(args_k);
 
         DPRINT(("cmd=%s ret=%ld\n", PFM_CMD_NAME(cmd), ret));