kernel32/lzexpand: Fix uninitialized read in read_header.

read_header calls _lread which can either return the number of characters read or HFILE_ERROR (-1), cast to a UINT. Signed-off-by: Evan Tang <etang110@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

kernel32/lzexpand: Fix uninitialized read in read_header.
4e9dae37 · Evan Tang · Alexandre Julliard · 47f3abb6 · 4e9dae37
Commit 4e9dae37 authored Jan 27, 2020 by Evan Tang Committed by Alexandre Julliard Jan 27, 2020
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lzexpand.c dlls/kernel32/lzexpand.c +1 -1

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--- a/dlls/kernel32/lzexpand.c
+++ b/dlls/kernel32/lzexpand.c
@@ -139,7 +139,7 @@ static INT read_header(HFILE fd,struct lzfileheader *head)
 	/* We can't directly read the lzfileheader struct due to
 	 * structure element alignment
 	 */
-	if (_lread(fd,buf,LZ_HEADER_LEN)<LZ_HEADER_LEN)
+	if (_lread(fd,buf,LZ_HEADER_LEN) != LZ_HEADER_LEN)
 		return 0;
 	memcpy(head->magic,buf,LZ_MAGIC_LEN);
 	memcpy(&(head->compressiontype),buf+LZ_MAGIC_LEN,1);