Niklas Söderlund a1ed64efc5 dmaengine: rcar-dmac: wait for ISR to finish before freeing resources ... This fixes a race condition where the channel resources could be freed before the ISR had finished running resulting in a NULL pointer reference from the ISR. [ 167.148934] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 167.157051] pgd = ffff80003c641000 [ 167.160449] [00000000] *pgd=000000007c507003, *pud=000000007c4ff003, *pmd=0000000000000000 [ 167.168719] Internal error: Oops: 96000046 [#1] PREEMPT SMP [ 167.174289] Modules linked in: [ 167.177348] CPU: 3 PID: 10547 Comm: dma_ioctl Not tainted 4.11.0-rc1-00001-g8d92afddc2f6633a #73 [ 167.186131] Hardware name: Renesas Salvator-X board based on r8a7795 (DT) [ 167.192917] task: ffff80003a411a00 task.stack: ffff80003bcd4000 [ 167.198850] PC is at rcar_dmac_chan_prep_sg+0xe0/0x400 [ 167.203985] LR is at rcar_dmac_chan_prep_sg+0x48/0x400 Based of previous work by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Vinod Koul <vinod.koul@intel.com>		2017-05-19 14:55:23 +05:30
..
Kconfig	dmaengine: sh: Use ARCH_RENESAS	2016-02-08 08:48:08 +05:30
Makefile	dmaengine: sh: Remove unused R-Car HPB-DMAC driver	2015-12-10 09:43:33 +05:30
rcar-dmac.c	dmaengine: rcar-dmac: wait for ISR to finish before freeing resources	2017-05-19 14:55:23 +05:30
shdma-arm.h
shdma-base.c	dmaengine: sh_shdma-base: convert callback to helper function	2016-08-08 08:11:43 +05:30
shdma-of.c	dmaengine: Remove .owner field for driver	2014-11-06 11:54:18 +05:30
shdma-r8a73a4.c	dmaengine: shdma: r8a73a4: Make dma_ts_shift[] static	2015-05-25 22:33:07 +05:30
shdma.h
shdmac.c	dmaengine: Remove site specific OOM error messages on kzalloc	2016-06-21 21:35:00 +05:30
sudmac.c	dmaengine: Remove site specific OOM error messages on kzalloc	2016-06-21 21:35:00 +05:30
usb-dmac.c	dmaengine: usb-dmac: remove unused ‘uchan’	2016-12-12 22:25:21 +05:30