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usb: gadget: FunctionFS: dereference ffs_dev conditionally
author
Andrzej Pietrasiewicz
<andrzej.p@samsung.com>
Mon, 13 Jan 2014 15:41:22 +0000
(16:41 +0100)
committer
Chanho Park
<chanho61.park@samsung.com>
Tue, 18 Nov 2014 02:46:53 +0000
(11:46 +0900)
ffs_dev->ffs_release_dev_callback should be accessed only if ffs_dev
is not NULL.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
drivers/usb/gadget/f_fs.c
patch
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diff --git
a/drivers/usb/gadget/f_fs.c
b/drivers/usb/gadget/f_fs.c
index
b70b9be
..
1f8629a
100644
(file)
--- a/
drivers/usb/gadget/f_fs.c
+++ b/
drivers/usb/gadget/f_fs.c
@@
-2592,11
+2592,12
@@
static void ffs_release_dev(struct ffs_data *ffs_data)
ffs_dev_lock();
ffs_dev = ffs_data->private_data;
- if (ffs_dev)
+ if (ffs_dev)
{
ffs_dev->mounted = false;
-
- if (ffs_dev->ffs_release_dev_callback)
- ffs_dev->ffs_release_dev_callback(ffs_dev);
+
+ if (ffs_dev->ffs_release_dev_callback)
+ ffs_dev->ffs_release_dev_callback(ffs_dev);
+ }
ffs_dev_unlock();
}