A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-14 08:36:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "mmc: core: Fix clk scaling deadlock with irqsave"

Browse source
This commit is contained in:
qctecmdr 2020-11-02 07:48:27 -08:00 • committed by Gerrit - the friendly Code Review server
commit eb72ab27a7
1 changed files with 3 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

9
drivers/mmc/core/core.c
View file

@ -217,18 +217,15 @@ void mmc_cqe_clk_scaling_stop_busy(struct mmc_host *host,
bool lock_needed, bool is_cqe_dcmd)
{
unsigned int cqe_active_reqs = 0;
unsigned long flags;
if (!host->clk_scaling.enable)
return;
cqe_active_reqs = atomic_read(&host->active_reqs);
/*
* This gets invoked from CQE completion path which is hard IRQ context
* So use spin_lock() instread of spin_lock_irqsave()
*/
if (lock_needed)
spin_lock(&host->clk_scaling.lock);
spin_lock_irqsave(&host->clk_scaling.lock, flags);
/*
* For CQ mode: In completion of DCMD request, start busy time in
@ -254,7 +251,7 @@ void mmc_cqe_clk_scaling_stop_busy(struct mmc_host *host,
}
out:
if (lock_needed)
spin_unlock(&host->clk_scaling.lock);
spin_unlock_irqrestore(&host->clk_scaling.lock, flags);
}
EXPORT_SYMBOL(mmc_cqe_clk_scaling_stop_busy);