From 7023056e63402e693489a04925f854e4217f9b50 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 31 May 2015 18:46:40 -0500 Subject: [PATCH 028/143] northbridge/amd/amdmct/mct_ddr3: Fix S3 suspend overrunning the stack size limit Change-Id: Id7441dacef2e46e283d1fc99d5e5fa3f20e0d097 Signed-off-by: Timothy Pearson --- src/northbridge/amd/amdmct/mct_ddr3/s3utils.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/src/northbridge/amd/amdmct/mct_ddr3/s3utils.c b/src/northbridge/amd/amdmct/mct_ddr3/s3utils.c index a49499f..c9bcac1 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/s3utils.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/s3utils.c @@ -543,10 +543,17 @@ int8_t save_mct_information_to_nvram(void) struct spi_flash *flash; ssize_t s3nv_offset; - struct amd_s3_persistent_data persistent_data; + struct amd_s3_persistent_data *persistent_data; + + /* Allocate temporary data structures */ + persistent_data = malloc(sizeof(struct amd_s3_persistent_data)); + if (!persistent_data) { + printk(BIOS_DEBUG, "Could not allocate S3 data structure in RAM\n"); + return -1; + } /* Obtain MCT configuration data */ - copy_mct_data_to_save_variable(&persistent_data); + copy_mct_data_to_save_variable(persistent_data); /* Obtain CBFS file offset */ s3nv_offset = get_s3nv_file_offset(); @@ -576,7 +583,10 @@ int8_t save_mct_information_to_nvram(void) /* Erase and write data structure */ flash->erase(flash, s3nv_offset, CONFIG_S3_DATA_SIZE); - flash->write(flash, s3nv_offset, sizeof(struct amd_s3_persistent_data), &persistent_data); + flash->write(flash, s3nv_offset, sizeof(struct amd_s3_persistent_data), persistent_data); + + /* Deallocate temporary data structures */ + free(persistent_data); /* Tear down SPI flash access */ flash->spi->rw = SPI_WRITE_FLAG; -- 1.7.9.5