[SDL] [PATCH] Fix a memory leak in X11_InitKeyboard

[Tapani Pälli]

Patch uses XkbFreeKeyboard to free the memory returned by XkbGetMap.
Earlier implementation called XkbFreeClientMap which frees all the maps
but not data->xkb structure itself, XkbFreeKeyboard will free maps and
the structure.

--- 8< ---
==23869== 72 bytes in 1 blocks are definitely lost in loss record 92 of 133
==23869== at 0x4C2DA60: calloc (vg_replace_malloc.c:711)
==23869== by 0x8D10530: XkbGetMap (in /usr/lib64/libX11.so.6.3.0)
==23869== by 0x4F1DC5D: X11_InitKeyboard (SDL_x11keyboard.c:279)

Signed-off-by: Tapani Pälli <***@intel.com>
---
src/video/x11/SDL_x11keyboard.c | 2 +-
src/video/x11/SDL_x11sym.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/video/x11/SDL_x11keyboard.c b/src/video/x11/SDL_x11keyboard.c
index acc15d7..1e276ef 100644
--- a/src/video/x11/SDL_x11keyboard.c
+++ b/src/video/x11/SDL_x11keyboard.c
@@ -484,7 +484,7 @@ X11_QuitKeyboard(_THIS)

#if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM
if (data->xkb) {
- X11_XkbFreeClientMap(data->xkb, 0, True);
+ X11_XkbFreeKeyboard(data->xkb, 0, True);
data->xkb = NULL;
}
#endif
diff --git a/src/video/x11/SDL_x11sym.h b/src/video/x11/SDL_x11sym.h
index 371f6a4..758dd2c 100644
--- a/src/video/x11/SDL_x11sym.h
+++ b/src/video/x11/SDL_x11sym.h
@@ -179,6 +179,7 @@ SDL_X11_SYM(Status,XkbGetState,(Display* a,unsigned int b,XkbStatePtr c),(a,b,c)
SDL_X11_SYM(Status,XkbGetUpdatedMap,(Display* a,unsigned int b,XkbDescPtr c),(a,b,c),return)
SDL_X11_SYM(XkbDescPtr,XkbGetMap,(Display* a,unsigned int b,unsigned int c),(a,b,c),return)
SDL_X11_SYM(void,XkbFreeClientMap,(XkbDescPtr a,unsigned int b, Bool c),(a,b,c),)
+SDL_X11_SYM(void,XkbFreeKeyboard,(XkbDescPtr a,unsigned int b, Bool c),(a,b,c),)
SDL_X11_SYM(BOOL,XkbSetDetectableAutoRepeat,(Display* a, BOOL b, BOOL* c),(a,b,c),return)
#endif