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| author | Sunny Kumar <sunny.kumar.roy@gmail.com> | 2015-07-07 12:27:03 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-22 15:45:04 -0700 |
| commit | e616b39a16d4458224d91697b0a2599336f0c38c (patch) | |
| tree | 38236d5789675d04049820105a5ab0c53064dce4 /drivers/usb/storage | |
| parent | 655fe4effe0f1f40e4f6ca6b3cc64a7fe0032183 (diff) | |
| download | linux-e616b39a16d4458224d91697b0a2599336f0c38c.tar.gz linux-e616b39a16d4458224d91697b0a2599336f0c38c.tar.bz2 linux-e616b39a16d4458224d91697b0a2599336f0c38c.zip | |
usb: usleep_range is preferred over udelay where wakeup is flexible
According to Documentation/timers/timers-howto.txt"
udelay() is only called once from a place where sleeping is allowed.
We can replace it with a call to usleep_range()
with a reasonable upper limit.
Signed-off-by: Sunny Kumar <sunny.kumar.roy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/storage')
| -rw-r--r-- | drivers/usb/storage/transport.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 540add24a12f..5e67f63b2e46 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1111,7 +1111,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) * command phase and the data phase. Some devices need a little * more than that, probably because of clock rate inaccuracies. */ if (unlikely(us->fflags & US_FL_GO_SLOW)) - udelay(125); + usleep_range(125, 150); if (transfer_length) { unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ? |