egl: turn one more boolean int into a bool

Same as the previous commit, but this one was split out because it's
a bit more complicated: this field is given as a pointer to a function,
so the function had to be changed as well, and the function was use in
a bunch of places, which needed updating as well.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

src/loader/loader.c

@@ -153,7 +153,7 @@ static char *drm_get_id_path_tag_for_fd(int fd)
    return tag;
 }
 
-int loader_get_user_preferred_fd(int default_fd, int *different_device)
+int loader_get_user_preferred_fd(int default_fd, bool *different_device)
 {
 /* Arbitrary "maximum" value of drm devices. */
 #define MAX_DRM_DEVICES 32
@@ -171,7 +171,7 @@ int loader_get_user_preferred_fd(int default_fd, int *different_device)
 #endif
 
    if (prime == NULL) {
-      *different_device = 0;
+      *different_device = false;
       return default_fd;
    }
 
@@ -230,16 +230,16 @@ int loader_get_user_preferred_fd(int default_fd, int *different_device)
    return fd;
 
  err:
-   *different_device = 0;
+   *different_device = false;
 
    free(default_tag);
    free(prime);
    return default_fd;
 }
 #else
-int loader_get_user_preferred_fd(int default_fd, int *different_device)
+int loader_get_user_preferred_fd(int default_fd, bool *different_device)
 {
-   *different_device = 0;
+   *different_device = false;
    return default_fd;
 }
 #endif

src/loader/loader.h

@@ -27,6 +27,8 @@
 #ifndef LOADER_H
 #define LOADER_H
 
+#include <stdbool.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -51,7 +53,7 @@ loader_get_device_name_for_fd(int fd);
  */
 
 int
-loader_get_user_preferred_fd(int default_fd, int *different_device);
+loader_get_user_preferred_fd(int default_fd, bool *different_device);
 
 /* for logging.. keep this aligned with egllog.h so we can just use
  * _eglLog directly.