From d9c93c9e2c53e5b624e79b9ba244f84b5c73544b Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 12 Aug 2021 12:30:36 +0200
Subject: [PATCH] xilinx: common: Change board_info[] handling

Origin code was allocating only pointers to struct xilinx_board_description
and there was separate allocation for structure self and freeing in case of
failure.
The code is directly allocating space for all structures by one calloc to
simlify logic.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 board/xilinx/common/board.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c
index db9705c1b7..44c8aa5eef 100644
--- a/board/xilinx/common/board.c
+++ b/board/xilinx/common/board.c
@@ -68,7 +68,7 @@ struct xilinx_board_description {
 };
 
 static int highest_id = -1;
-static struct xilinx_board_description **board_info;
+static struct xilinx_board_description *board_info;
 
 #define XILINX_I2C_DETECTION_BITS	sizeof(struct fru_common_hdr)
 
@@ -280,7 +280,7 @@ static int xilinx_read_eeprom_single(char *name,
 
 __maybe_unused int xilinx_read_eeprom(void)
 {
-	int id, ret;
+	int id;
 	char name_buf[8]; /* 8 bytes should be enough for nvmem+number */
 	struct xilinx_board_description *desc;
 
@@ -289,7 +289,7 @@ __maybe_unused int xilinx_read_eeprom(void)
 	if (highest_id < 0)
 		return -EINVAL;
 
-	board_info = calloc(1, sizeof(desc) * highest_id);
+	board_info = calloc(1, sizeof(*desc) * (highest_id + 1));
 	if (!board_info)
 		return -ENOMEM;
 
@@ -300,21 +300,10 @@ __maybe_unused int xilinx_read_eeprom(void)
 		snprintf(name_buf, sizeof(name_buf), "nvmem%d", id);
 
 		/* Alloc structure */
-		desc = board_info[id];
-		if (!desc) {
-			desc = calloc(1, sizeof(*desc));
-			if (!desc)
-				return -ENOMEM;
-
-			board_info[id] = desc;
-		}
+		desc = &board_info[id];
 
 		/* Ignoring return value for supporting multiple chips */
-		ret = xilinx_read_eeprom_single(name_buf, desc);
-		if (ret) {
-			free(desc);
-			board_info[id] = NULL;
-		}
+		xilinx_read_eeprom_single(name_buf, desc);
 	}
 
 	/*
@@ -400,7 +389,7 @@ int board_late_init_xilinx(void)
 	ret |= env_set_addr("bootm_size", (void *)bootm_size);
 
 	for (id = 0; id <= highest_id; id++) {
-		desc = board_info[id];
+		desc = &board_info[id];
 		if (desc && desc->header == EEPROM_HEADER_MAGIC) {
 			if (desc->manufacturer[0])
 				ret |= env_set_by_index("manufacturer", id,
-- 
2.39.5