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| author | Chaotian Jing <chaotian.jing@mediatek.com> | 2016-05-19 16:47:42 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-25 10:34:09 +0200 |
| commit | 987aa5f8059613bf85cbb6f64ffbd34f5cb7a9d1 (patch) | |
| tree | 43268936b258f5881a56142dcb7a07e7c8ca1468 /drivers/mmc/core | |
| parent | 08573eaf1a70104f83fdbee9b84e5be03480e9ed (diff) | |
| download | linux-987aa5f8059613bf85cbb6f64ffbd34f5cb7a9d1.tar.gz linux-987aa5f8059613bf85cbb6f64ffbd34f5cb7a9d1.tar.xz | |
mmc: mmc: fix switch timeout issue caused by jiffies precision
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>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 32de14450ea7..ad6e9798e949 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -534,7 +534,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, timeout_ms = MMC_OPS_TIMEOUT_MS; /* Must check status to be sure of no errors. */ - timeout = jiffies + msecs_to_jiffies(timeout_ms); + timeout = jiffies + msecs_to_jiffies(timeout_ms) + 1; do { /* * Due to the possibility of being preempted after |