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emmc: optimize sdio tuning print [1/1]

Browse Source 
PD#SWPL-15797

Problem:
commit a5c3731f5d
this patch has err, the print buf will be out of bounds.

Solution:
Reposition the pointer before each loop.

Verify:
tl1

Change-Id: I8f44269c375147c5290af9c6d84fd5d85be271f0
Signed-off-by: Nan Li <nan.li@amlogic.com>
This commit is contained in:
Nan Li
2019-10-25 19:20:48 +08:00
committed by Jianxin Pan
parent 98cc86a259
commit 3f3907b50e
1 changed files with 3 additions and 1 deletions
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4
drivers/amlogic/mmc/aml_sd_emmc_v3.c
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@@ -1735,7 +1735,7 @@ static int _aml_sd_emmc_execute_tuning(struct mmc_host *mmc, u32 opcode,
u32 old_dly, d1_dly, dly;
unsigned long fixed_adj_map[1];
bool all_flag = false;
u8 *adj_print = host->adj_win;
u8 *adj_print = NULL;
u32 len = 0;
if ((host->mem->start == host->data->port_b_base)
@@ -1756,6 +1756,8 @@ tunning:
curr_win_start = -1;
curr_win_size = 0;
len = 0;
adj_print = host->adj_win;
memset(adj_print, 0, sizeof(u8) * ADJ_WIN_PRINT_MAXLEN);
len += sprintf(adj_print + len, "%s: adj_win: < ", pdata->pinname);
spin_lock_irqsave(&host->mrq_lock, flags);