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authorJoursoir <chat@joursoir.net>2021-12-15 15:13:29 +0300
committerJoursoir <chat@joursoir.net>2021-12-15 15:13:29 +0300
commit704f61fcafc0b5b8e8dfff8e56821feb556b40c0 (patch)
tree9594bc526b1673faf9c0a1b0ba63c103bc92811f
parent8d1a606a1260f32e1e49b3d1d4f35c51b7dc8742 (diff)
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widget/input: fix the possibility of deletion at the extreme point
-rw-r--r--Library/UefiShellUfmCommandLib/widget/input.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Library/UefiShellUfmCommandLib/widget/input.c b/Library/UefiShellUfmCommandLib/widget/input.c
index 3fbb1b2..ed6738b 100644
--- a/Library/UefiShellUfmCommandLib/widget/input.c
+++ b/Library/UefiShellUfmCommandLib/widget/input.c
@@ -76,7 +76,7 @@ VOID input_handle_char(struct widget_input *in, EFI_INPUT_KEY key)
case 0x0:
break;
case CHAR_BACKSPACE: {
- if(in->buf_len == 0)
+ if(in->buf_len == 0 || in->point == 0)
break;
for(i = in->point; i < in->buf_len; i++)