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authorKunihiko Hayashi <hayashi.kunihiko@socionext.com>2021-07-27 08:47:32 +0300
committerVinod Koul <vkoul@kernel.org>2021-07-27 15:45:42 +0300
commit55f24c27b6c1a840b62fe297616f1f9ea3576cb7 (patch)
treeefb584eb52f9d34ffb073ac0f4c5b4364fa6084f /drivers/dma
parent6b4b87f2c31ac1af4f244990a7cbfb50d3f3e33f (diff)
downloadlinux-55f24c27b6c1a840b62fe297616f1f9ea3576cb7.tar.xz
dmaengine: uniphier-xdmac: Use readl_poll_timeout_atomic() in atomic state
The function uniphier_xdmac_chan_stop() is only called in atomic state. Should use readl_poll_timeout_atomic() there instead of readl_poll_timeout(). Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 667b9251440b ("dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver") Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Link: https://lore.kernel.org/r/1627364852-28432-1-git-send-email-hayashi.kunihiko@socionext.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/uniphier-xdmac.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/uniphier-xdmac.c b/drivers/dma/uniphier-xdmac.c
index 16b19654873d..d6b8a202474f 100644
--- a/drivers/dma/uniphier-xdmac.c
+++ b/drivers/dma/uniphier-xdmac.c
@@ -209,8 +209,8 @@ static int uniphier_xdmac_chan_stop(struct uniphier_xdmac_chan *xc)
writel(0, xc->reg_ch_base + XDMAC_TSS);
/* wait until transfer is stopped */
- return readl_poll_timeout(xc->reg_ch_base + XDMAC_STAT, val,
- !(val & XDMAC_STAT_TENF), 100, 1000);
+ return readl_poll_timeout_atomic(xc->reg_ch_base + XDMAC_STAT, val,
+ !(val & XDMAC_STAT_TENF), 100, 1000);
}
/* xc->vc.lock must be held by caller */