Commit bb342f01 authored Feb 20, 2019 by Sumit Garg Committed by Arnd Bergmann Feb 20, 2019

tee: fix possible error pointer ctx dereferencing



Add check for valid ctx pointer and then only dereference ctx to
configure supp_nowait flag.

Fixes: 42bf4152 ("tee: add supp_nowait flag in tee_context struct")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

parent 56410c0c

drivers/tee/tee_core.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -993,7 +993,9 @@ tee_client_open_context(struct tee_context *start,
		* tee_client_open_session() if any in kernel client requires
		* different behaviour.
		*/
		if (!IS_ERR(ctx))
		ctx->supp_nowait = true;

		return ctx;
		}
		EXPORT_SYMBOL_GPL(tee_client_open_context);