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[Stable-9.2.4,16/34] plugins/loader: fix deadlock when resetting/uninstalling a plugin

Message ID 20250514125758.92030-16-mjt@tls.msk.ru
State New
Headers show
Series None | expand

Commit Message

Michael Tokarev May 14, 2025, 12:57 p.m. UTC 
From: Pierrick Bouvier <pierrick.bouvier@linaro.org>

Reported and fixed by Dmitry Kurakin.

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/2901
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250404032027.430575-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit c07cd110a1824e2d046581af7375f16dac26e96f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Patch

diff --git a/plugins/loader.c b/plugins/loader.c
index ebc01da9c6..3070fe52ab 100644
--- a/plugins/loader.c
+++ b/plugins/loader.c
@@ -379,7 +379,7 @@  static void plugin_reset_destroy(struct qemu_plugin_reset_data *data)
 {
     qemu_rec_mutex_lock(&plugin.lock);
     plugin_reset_destroy__locked(data);
-    qemu_rec_mutex_lock(&plugin.lock);
+    qemu_rec_mutex_unlock(&plugin.lock);
 }
 
 static void plugin_flush_destroy(CPUState *cpu, run_on_cpu_data arg)