V3s_Allwinner
/
uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

mmc: dw_mmc: Stop bounce buffer even in case of failure 

The driver didn't stop the bounce buffer in case a data transfer
failed. This would lead to memory leakage if the communication
between the CPU and the card is unreliable. Add the missing call
to stop the bounce buffer.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2015-07-27 22:39:36 +02:00 committed by Pantelis Antoniou
parent e2c1c5bae6
commit 603b2f3a74
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/mmc/dw_mmc.c
View File

@ -215,6 +215,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
mask = dwmci_readl(host, DWMCI_RINTSTS);
if (mask & (DWMCI_DATA_ERR | DWMCI_DATA_TOUT)) {
printf("%s: DATA ERROR!\n", __func__);
bounce_buffer_stop(&bbstate);
return -1;
}
} while (!(mask & DWMCI_INTMSK_DTO));