[PATCH] arm64: versal2: Fix buffer overflow in soc_name_decode

[Francois Berder]

The size of name buffer was not computed correctly.
The suffix format is "--rel.-el" (9 chars instead of 6),
and the longest platform name is "emu-mmd" (7 chars instead of 4).
Fix comment and name size.

Signed-off-by: Francois Berder <fberder at outlook.fr>
---
 board/amd/versal2/board.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/board/amd/versal2/board.c b/board/amd/versal2/board.c
index d94c1494d53..81daba1c5ef 100644
--- a/board/amd/versal2/board.c
+++ b/board/amd/versal2/board.c
@@ -81,12 +81,13 @@ char *soc_name_decode(void)
 	}
 
 	/*
-	 * --rev. are 6 chars
-	 * max platform name is qemu which is 4 chars
+	 * --rev.-el are 9 chars
+	 * max platform name is emu-mmd which is 7 chars
 	 * platform version number are 1+1
-	 * Plus 1 char for \n
+	 * el is 1 char
+	 * Plus 1 char for NULL byte
 	 */
-	name = calloc(1, strlen(CONFIG_SYS_BOARD) + 13);
+	name = calloc(1, strlen(CONFIG_SYS_BOARD) + 20);
 	if (!name)
 		return NULL;
 
-- 
2.43.0