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| author | Ulrich Sibiller <uli42@gmx.de> | 2019-06-17 17:31:32 +0200 |
|---|---|---|
| committer | Ulrich Sibiller <uli42@gmx.de> | 2019-06-19 00:49:57 +0200 |
| commit | 340de78e26e7837561909ae2a44c2ef85863d87b (patch) | |
| tree | dfcb603e378766557e09ebeaa08d4e82835bb1d9 | |
| parent | 3b06ad51d91ff2b9442f159cddf34ed03bc2dd35 (diff) | |
| download | nx-libs-340de78e26e7837561909ae2a44c2ef85863d87b.tar.gz nx-libs-340de78e26e7837561909ae2a44c2ef85863d87b.tar.bz2 nx-libs-340de78e26e7837561909ae2a44c2ef85863d87b.zip | |
Keyboard.c: nullify freed pointers
While trying to properly free memory allocated by XKB I accidently
called nxagentFreeKeyboardDeviceData twice and noticed it would cause
a segfault here. As the other pointers are also nullified after
being freed let's just do it here, too.
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/Keyboard.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Keyboard.c b/nx-X11/programs/Xserver/hw/nxagent/Keyboard.c index 96b33ea7d..46686b754 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/Keyboard.c +++ b/nx-X11/programs/Xserver/hw/nxagent/Keyboard.c @@ -1327,14 +1327,18 @@ static int nxagentFreeKeyboardDeviceData(DeviceIntPtr dev) dev->focus = NULL; } - for (k = dev->kbdfeed; k; k = knext) + if (dev->kbdfeed) { - knext = k->next; - #ifdef XKB - if (k->xkb_sli) - XkbFreeSrvLedInfo(k->xkb_sli); - #endif - free(k); + for (k = dev->kbdfeed; k; k = knext) + { + knext = k->next; + #ifdef XKB + if (k->xkb_sli) + XkbFreeSrvLedInfo(k->xkb_sli); + #endif + free(k); + } + dev->kbdfeed = NULL; } #ifdef DEBUG |