From bce7698e2e6565bb765bd0522337f29f5f312624 Mon Sep 17 00:00:00 2001 From: Haojie Li Date: Tue, 25 Aug 2026 18:08:45 +0800 Subject: drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash. Add an IS_ERR() check to jump to the error handling path on failure. Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195") Cc: stable@vger.kernel.org Signed-off-by: Haojie Li Reviewed-by: CK Hu Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/ Signed-off-by: Chun-Kuang Hu --- tools/perf/ui/keysyms.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 tools/perf/ui/keysyms.c (limited to 'tools/perf/ui/keysyms.c') diff --git a/tools/perf/ui/keysyms.c b/tools/perf/ui/keysyms.c new file mode 100644 index 000000000..b64564b07 --- /dev/null +++ b/tools/perf/ui/keysyms.c @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#include "keysyms.h" +#include +#include + +const char *key_name(int key, char *bf, size_t size) +{ + if (isprint(key)) { + scnprintf(bf, size, "%c", key); + } else if (key < 32) { + scnprintf(bf, size, "Ctrl+%c", key + '@'); + } else { + const char *name = NULL; + + switch (key) { + case K_DOWN: name = "Down"; break; + case K_END: name = "End"; break; + case K_ENTER: name = "Enter"; break; + case K_ESC: name = "ESC"; break; + case K_F1: name = "F1"; break; + case K_HOME: name = "Home"; break; + case K_LEFT: name = "Left"; break; + case K_PGDN: name = "PgDown"; break; + case K_PGUP: name = "PgUp"; break; + case K_RIGHT: name = "Right"; break; + case K_TAB: name = "Tab"; break; + case K_UNTAB: name = "Untab"; break; + case K_UP: name = "Up"; break; + case K_BKSPC: name = "Backspace"; break; + case K_DEL: name = "Del"; break; + default: + if (key >= SL_KEY_F(1) && key <= SL_KEY_F(63)) + scnprintf(bf, size, "F%d", key - SL_KEY_F(0)); + else + scnprintf(bf, size, "Unknown (%d)", key); + } + + if (name) + scnprintf(bf, size, "%s", name); + } + + return bf; +} -- cgit v1.3.1