Hello.
On 7/8/2015 12:05 PM, Robert Baldyga wrote:
Function ffs_do_functionfs_bind() calls functionfs_bind() which allocates
usb request and increments refcounts. These things needs to be cleaned
up by if further steps of initialization fail by calling functionfs_unbind().
Signed-off-by: Robert Baldyga <[email protected]>
---
drivers/usb/gadget/function/f_fs.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/f_fs.c
b/drivers/usb/gadget/function/f_fs.c
index 6e7be91..6516187 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -2897,11 +2897,18 @@ static int ffs_func_bind(struct usb_configuration *c,
struct usb_function *f)
{
struct f_fs_opts *ffs_opts = ffs_do_functionfs_bind(f, c);
+ struct ffs_function *func = ffs_func_from_usb(f);
+ int ret;
if (IS_ERR(ffs_opts))
return PTR_ERR(ffs_opts);
- return _ffs_func_bind(c, f);
+ ret = _ffs_func_bind(c, f);
+ if (ret)
+ if(!--ffs_opts->refcnt)
+ functionfs_unbind(func->ffs);
Hum, I think you need {} around the outer *if* clause. Either that, or
just fold two *if* statments together.
+
+ return ret;
}
[...]
WBR, Sergei
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