From: Wenji Tang <tang.wenji@xxxxxxxxxx>
In the tcmu_open function does not increase the reference count of dev, but in the tcmu_release function to decrease its reference count. When the user oepn/close device many times, the corresponding dev device is illegally released
Signed-off-by: Wenji Tang <tang.wenji@xxxxxxxxxx>
---
drivers/target/target_core_user.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index beb5f09..376a290 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1142,6 +1142,8 @@ static int tcmu_open(struct uio_info *info, struct inode *inode)
udev->inode = inode;
pr_debug("open\n");
+
+ kref_get(&udev->kref);
return 0;
}
--
2.8.1.windows.1
--
To unsubscribe from this list: send the line "unsubscribe target-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
