From: Stefan Agner stefan.agner@toradex.com
If the NAND chip is missing get_nand_dev_by_index() returns NULL. Fail gracefully in this case.
Signed-off-by: Stefan Agner stefan.agner@toradex.com ---
board/toradex/common/tdx-cfg-block.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/board/toradex/common/tdx-cfg-block.c b/board/toradex/common/tdx-cfg-block.c index 57edb6c5c9..d4f5b1803a 100644 --- a/board/toradex/common/tdx-cfg-block.c +++ b/board/toradex/common/tdx-cfg-block.c @@ -156,10 +156,13 @@ out: static int read_tdx_cfg_block_from_nand(unsigned char *config_block) { size_t size = TDX_CFG_BLOCK_MAX_SIZE; + struct mtd_info *mtd = get_nand_dev_by_index(0); + + if (!mtd) + return -ENODEV;
/* Read production parameter config block from NAND page */ - return nand_read_skip_bad(get_nand_dev_by_index(0), - CONFIG_TDX_CFG_BLOCK_OFFSET, + return nand_read_skip_bad(mtd, CONFIG_TDX_CFG_BLOCK_OFFSET, &size, NULL, TDX_CFG_BLOCK_MAX_SIZE, config_block); }