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>
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@ -3007,6 +3007,9 @@ static void gsi_free_inst(struct usb_function_instance *f)
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{
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struct gsi_opts *opts = container_of(f, struct gsi_opts, func_inst);
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if (!opts->gsi)
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return;
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if (opts->gsi->c_port.ctrl_device.fops)
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misc_deregister(&opts->gsi->c_port.ctrl_device);
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