hw/audio/soundhw: Clean up global variable shadowing

Fix:

  hw/audio/soundhw.c:86:33: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
  void select_soundhw(const char *optarg, const char *audiodev)
                                  ^
  /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here
  extern char *optarg;                    /* getopt(3) external variables */
               ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004120019.93101-2-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/hw/audio/soundhw.c b/hw/audio/soundhw.c
index 94d9463..b387b0e 100644
--- a/hw/audio/soundhw.c
+++ b/hw/audio/soundhw.c
@@ -83,7 +83,7 @@ void show_valid_soundhw(void)
 static struct soundhw *selected = NULL;
 static const char *audiodev_id;
 
-void select_soundhw(const char *optarg, const char *audiodev)
+void select_soundhw(const char *name, const char *audiodev)
 {
     struct soundhw *c;
 
@@ -92,7 +92,7 @@ void select_soundhw(const char *optarg, const char *audiodev)
     }
 
     for (c = soundhw; c->name; ++c) {
-        if (g_str_equal(c->name, optarg)) {
+        if (g_str_equal(c->name, name)) {
             selected = c;
             audiodev_id = audiodev;
             break;
@@ -100,7 +100,7 @@ void select_soundhw(const char *optarg, const char *audiodev)
     }
 
     if (!c->name) {
-        error_report("Unknown sound card name `%s'", optarg);
+        error_report("Unknown sound card name `%s'", name);
         show_valid_soundhw();
         exit(1);
     }
diff --git a/include/hw/audio/soundhw.h b/include/hw/audio/soundhw.h
index 270717a..474c5ff 100644
--- a/include/hw/audio/soundhw.h
+++ b/include/hw/audio/soundhw.h
@@ -8,6 +8,6 @@ void deprecated_register_soundhw(const char *name, const char *descr,
 
 void soundhw_init(void);
 void show_valid_soundhw(void);
-void select_soundhw(const char *optarg, const char *audiodev);
+void select_soundhw(const char *name, const char *audiodev);
 
 #endif