This function is shared between gadget functions, so this avoid unnecessary
duplicated code and potentially avoid memory leaks.
Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_midi.c | 6 ------
drivers/usb/gadget/function/f_sourcesink.c | 6 ------
drivers/usb/gadget/function/g_zero.h | 1 -
drivers/usb/gadget/u_f.c | 8 ++++++++
drivers/usb/gadget/u_f.h | 3 +--
5 files changed, 9 insertions(+), 15 deletions(-)
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index c19f154..4c01c8a 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -202,12 +202,6 @@ static inline struct usb_request *midi_alloc_ep_req(struct usb_ep *ep,
return alloc_ep_req(ep, length, length);
}
-static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
- kfree(req->buf);
- usb_ep_free_request(ep, req);
-}
-
static const uint8_t f_midi_cin_length[] = {
0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
};
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 3a5ae99..eedea7f 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -307,12 +307,6 @@ static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
return alloc_ep_req(ep, len, buflen);
}
-void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
- kfree(req->buf);
- usb_ep_free_request(ep, req);
-}
-
static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
{
int value;
diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h
index 15f1809..5ed90b4 100644
--- a/drivers/usb/gadget/function/g_zero.h
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -59,7 +59,6 @@ void lb_modexit(void);
int lb_modinit(void);
/* common utilities */
-void free_ep_req(struct usb_ep *ep, struct usb_request *req);
void disable_endpoints(struct usb_composite_dev *cdev,
struct usb_ep *in, struct usb_ep *out,
struct usb_ep *iso_in, struct usb_ep *iso_out);
diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c
index c6276f0..f78bd1f 100644
--- a/drivers/usb/gadget/u_f.c
+++ b/drivers/usb/gadget/u_f.c
@@ -14,6 +14,7 @@
#include <linux/usb/gadget.h>
#include "u_f.h"
+/* Requests allocated via alloc_ep_req() must be freed by free_ep_req(). */
struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
{
struct usb_request *req;
@@ -30,3 +31,10 @@ struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
return req;
}
EXPORT_SYMBOL_GPL(alloc_ep_req);
+
+void free_ep_req(struct usb_ep *ep, struct usb_request *req)
+{
+ kfree(req->buf);
+ usb_ep_free_request(ep, req);
+}
+EXPORT_SYMBOL_GPL(free_ep_req);
diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h
index 1d5f0eb..2a1a6fb 100644
--- a/drivers/usb/gadget/u_f.h
+++ b/drivers/usb/gadget/u_f.h
@@ -46,7 +46,6 @@ struct usb_ep;
struct usb_request;
struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len);
+void free_ep_req(struct usb_ep *ep, struct usb_request *req);
#endif /* __U_F_H__ */
-
-
--
2.1.4
--
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