lkml.org 
[lkml]   [2013]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 078/115] ion: don't use id 0 for handle cookie
Date
From: Colin Cross <ccross@android.com>

ion userspace clients think that the cookie is a pointer, so they
use NULL to check if the handle has been initialized. Set the first
id number to 1.

Signed-off-by: Colin Cross <ccross@android.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
drivers/staging/android/ion/ion.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index ef0b2d7..273ec3a 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -424,7 +424,7 @@ static int ion_handle_add(struct ion_client *client, struct ion_handle *handle)
rc = idr_pre_get(&client->idr, GFP_KERNEL);
if (!rc)
return -ENOMEM;
- rc = idr_get_new(&client->idr, handle, &id);
+ rc = idr_get_new_above(&client->idr, handle, 1, &id);
handle->id = id;
} while (rc == -EAGAIN);

--
1.8.3.2


\
 
 \ /
  Last update: 2013-12-14 00:21    [W:0.496 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site