msm: rmnet_ipa3: fix the crash issue



Seeing rmnet_ipa3 causing the device
crashed when ipa3 not initialized. The
fix is to add the check when rmnet_ipa
try to register the
ipa3_register_ipa_ready_cb.

Change-Id: I55618784befc61e37e68d3b8d8c7c5c30f45e4fc
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>

parent 2642c0ad

drivers/platform/msm/ipa/ipa_v3/ipa.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -5086,6 +5086,11 @@ int ipa3_register_ipa_ready_cb(void (ipa_ready_cb)(void ), void *user_data)
		{
		struct ipa3_ready_cb_info *cb_info = NULL;

		/* check ipa3_ctx existed or not */
		if (!ipa3_ctx) {
		IPADBG("IPA driver haven't initialized\n");
		return -ENXIO;
		}
		mutex_lock(&ipa3_ctx->lock);
		if (ipa3_ctx->ipa_initialization_complete) {
		mutex_unlock(&ipa3_ctx->lock);