Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

mmc: mmc: fix switch timeout issue caused by jiffies precision 

[ Upstream commit 987aa5f8059613bf85cbb6f64ffbd34f5cb7a9d1 ]

with CONFIG_HZ=100, the precision of jiffies is 10ms, and the
generic_cmd6_time of some card is also 10ms. then, may be current
time is only 5ms, but already timed out caused by jiffies precision.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chaotian Jing 2016-05-19 16:47:42 +08:00 committed by syphyr
parent 7b1962c6a4
commit a8010a68e9
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mmc/core/mmc_ops.c
View File

@ -475,7 +475,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
return 0;
/* Must check status to be sure of no errors */
timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS);
timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS) + 1;
do {
err = mmc_send_status(card, &status);
if (err)