korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-05 10:04:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

mmc: sunxi: Check the value returned by clk_round_rate

Browse Source 
clk_round_rate() may return an error. Check it.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jean-Francois Moine 2016-08-23 10:51:04 +02:00 committed by Ulf Hansson
parent b2db9c6743
commit 63311bece0
1 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/mmc/host/sunxi-mmc.c
View File

@ -692,7 +692,8 @@ static int sunxi_mmc_clk_set_phase(struct sunxi_mmc_host *host,
static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
struct mmc_ios *ios)
{
u32 rate, rval, clock = ios->clock;
long rate;
u32 rval, clock = ios->clock;
int ret;
/* 8 bit DDR requires a higher module clock */
@ -701,13 +702,18 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
clock <<= 1;
rate = clk_round_rate(host->clk_mmc, clock);
dev_dbg(mmc_dev(host->mmc), "setting clk to %d, rounded %d\n",
if (rate < 0) {
dev_err(mmc_dev(host->mmc), "error rounding clk to %d: %ld\n",
clock, rate);
return rate;
}
dev_dbg(mmc_dev(host->mmc), "setting clk to %d, rounded %ld\n",
clock, rate);
/* setting clock rate */
ret = clk_set_rate(host->clk_mmc, rate);
if (ret) {
dev_err(mmc_dev(host->mmc), "error setting clk to %d: %d\n",
dev_err(mmc_dev(host->mmc), "error setting clk to %ld: %d\n",
rate, ret);
return ret;
}