mesa/st: fix a memory leak in get_version

This patch prevents memory leak in get_version function in st_manager.c
This issue was found by valgrind:
16 bytes in 1 blocks are definitely lost in loss record 6 of 1,418
   at 0x483CD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x63D9476: st_init_extensions (st_extensions.c:1679)
   by 0x63B803B: get_version (st_manager.c:1271)
   by 0x63B8124: st_api_query_versions (st_manager.c:1289)
   by 0x63266EF: dri_init_screen_helper (dri_screen.c:583)
   by 0x6321B12: dri2_init_screen (dri2.c:2110)
   by 0x631AACC: driCreateNewScreen2 (dri_util.c:155)
   by 0x5D58192: dri3_create_screen (dri3_glx.c:897)
   by 0x5D39829: AllocAndFetchScreenConfigs (glxext.c:815)
   by 0x5D39C57: __glXInitialize (glxext.c:941)
   by 0x5D3290A: GetGLXPrivScreenConfig (glxcmds.c:174)
   by 0x5D34F38: glXQueryExtensionsString (glxcmds.c:1307)

Fixes: eca8032f20d0970184843d98e2bddb688e94a3a9 ("gallium: Add ARB_gl_spirv support")
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Signed-off-by: Andrii Simiklit <andrii.simiklit@globallogic.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3345>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3345>

diff --git a/src/mesa/state_tracker/st_manager.c b/src/mesa/state_tracker/st_manager.c
index ce7a2f6f0ed16246d6dc845b256445b753bd53c6..c3688c4818e3eabc7dcdcf6bf8e8dd95f9a77160 100644 (file)
--- a/src/mesa/state_tracker/st_manager.c
+++ b/src/mesa/state_tracker/st_manager.c
@@ -1269,8 +1269,9 @@ get_version(struct pipe_screen *screen,
 
    st_init_limits(screen, &consts, &extensions);
    st_init_extensions(screen, &consts, &extensions, options, api);
-
-   return _mesa_get_version(&extensions, &consts, api);
+   version = _mesa_get_version(&extensions, &consts, api);
+   free(consts.SpirVExtensions);
+   return version;
 }