register_shrinker() might return -ENOMEM error since Linux 3.12.
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Robert Love <rlove@xxxxxxxxx>
Cc: Marco Nelissen <marcone@xxxxxxxxxxx>
Cc: John Stultz <john.stultz@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
---
drivers/staging/android/ashmem.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 0f695df..ab56f81 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -862,12 +862,18 @@ static int __init ashmem_init(void)
goto out_free2;
}
- register_shrinker(&ashmem_shrinker);
+ ret = register_shrinker(&ashmem_shrinker);
+ if (unlikely(ret)) {
+ pr_err("failed to register shrinker\n");
+ goto out_free3;
+ }
pr_info("initialized\n");
return 0;
+out_free3:
+ misc_deregister(&ashmem_misc);
out_free2:
kmem_cache_destroy(ashmem_range_cachep);
out_free1:
--
1.8.3.1
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