[PATCH] usb: renesas_usbhs: Check pipe allocation in host pipe init

[Haoxiang Li]

usbhsh_pipe_init_for_host() allocates pipes with usbhs_dcp_malloc()
or usbhs_pipe_malloc(), both of which may return NULL. The returned
pointer is dereferenced unconditionally when clearing pipe->mod_private.

Check the returned pipe before using it to avoid a NULL pointer
dereference on pipe allocation/setup failure.

Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
---
 drivers/usb/renesas_usbhs/mod_host.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index f7ef3a9f82a4..11244cf3408d 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1441,6 +1441,9 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 						 dir_in);
 		}
 
+		if (!pipe)
+			return;
+
 		pipe->mod_private = NULL;
 	}
 }
-- 
2.25.1