From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Thu, 9 Nov 2017 20:01:13 +0000 (+0100)
Subject: Fix a crash if exiting while we are still trying to re-find an ALSA card from a loade... 
X-Git-Tag: 1.6.4~5
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=313aa6b93245851f57701142ff3a4a22c8a72e1c;p=nageru

Fix a crash if exiting while we are still trying to re-find an ALSA card from a loaded mapping.
---

diff --git a/alsa_input.cpp b/alsa_input.cpp
index b5fe3cb..7230abe 100644
--- a/alsa_input.cpp
+++ b/alsa_input.cpp
@@ -184,7 +184,9 @@ void ALSAInput::capture_thread_func()
 
 	if (should_quit.should_quit()) {
 		// Don't call free_card(); that would be a deadlock.
-		WARN_ON_ERROR("snd_pcm_close()", snd_pcm_close(pcm_handle));
+		if (pcm_handle) {
+			WARN_ON_ERROR("snd_pcm_close()", snd_pcm_close(pcm_handle));
+		}
 		pcm_handle = nullptr;
 		return;
 	}