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| author | York Sun <yorksun@freescale.com> | 2014-04-01 14:20:49 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-04-22 17:58:49 -0700 |
| commit | 349689b8021f0a7d7923099bd8bbe5eab117d4fa (patch) | |
| tree | eafb5be0e0ad33d739baa1ed885a7cdc9f412561 /drivers/ddr/fsl/main.c | |
| parent | 2ee6c52e229e1d0d1e78c3efbc67bc8bb868fb25 (diff) | |
| download | u-boot-imx-349689b8021f0a7d7923099bd8bbe5eab117d4fa.zip u-boot-imx-349689b8021f0a7d7923099bd8bbe5eab117d4fa.tar.gz u-boot-imx-349689b8021f0a7d7923099bd8bbe5eab117d4fa.tar.bz2 | |
drivers/ddr: Fix possible out of bounds error
This is a theoretical possible out of bounds error in DDR driver. Adding
check before using array index. Also change some runtime conditions to
pre-compiling conditions.
Signed-off-by: York Sun <yorksun@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers/ddr/fsl/main.c')
| -rw-r--r-- | drivers/ddr/fsl/main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c index f95704f..5e001fc 100644 --- a/drivers/ddr/fsl/main.c +++ b/drivers/ddr/fsl/main.c @@ -220,6 +220,11 @@ const char * step_to_string(unsigned int step) { if ((1 << s) != step) return step_string_tbl[7]; + if (s >= ARRAY_SIZE(step_string_tbl)) { + printf("Error for the step in %s\n", __func__); + s = 0; + } + return step_string_tbl[s]; } @@ -520,6 +525,7 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, /* STEP 5: Assign addresses to chip selects */ check_interleaving_options(pinfo); total_mem = step_assign_addresses(pinfo, dbw_capacity_adjust); + debug("Total mem %llu assigned\n", total_mem); case STEP_COMPUTE_REGS: /* STEP 6: compute controller register values */ |