Commit 99392dcd authored Dec 30, 2016 by Chandana Kishori Chiluveru

usb: gadget: Fix null pointer crash issue in gsi_free_inst



If misc register failed then there is a chance for accessing the
null pointer in gsi_free_inst function and leads to target crash.
Hence add the change to handle the same.

Change-Id: Iaa3f7db1403ca2d87f259dec109912c5437c24f4
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>

parent e51c3cc8

drivers/usb/gadget/function/f_gsi.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -3007,6 +3007,9 @@ static void gsi_free_inst(struct usb_function_instance *f)
		{
		struct gsi_opts *opts = container_of(f, struct gsi_opts, func_inst);

		if (!opts->gsi)
		return;

		if (opts->gsi->c_port.ctrl_device.fops)
		misc_deregister(&opts->gsi->c_port.ctrl_device);