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authorViresh Kumar <viresh.kumar@st.com>2011-08-10 14:20:55 +0530
committerGrant Likely <grant.likely@secretlab.ca>2011-09-21 09:41:47 -0600
commit538a18dc189ef5d0b87c987d8460515b5e2e8588 (patch)
tree51c5b16a938fee7e86f1448e09264dc80b7ffb63 /drivers/spi
parentf1e45f86ed93b9ec0b6b51dd75841894935d2b68 (diff)
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spi/spi-pl022: Use GFP_ATOMIC for allocation from tasklet
tasklets don't allow invocation to sleeping routines. In configure_dma() routine, sg_alloc_table() was called with GFP_KERNEL flag and so this causes crash when called from tasklet. Replace GFP_KERNEL with GFP_ATOMIC to get this fixed. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-pl022.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 6209540e06a6..01e9aa45ea88 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1019,11 +1019,11 @@ static int configure_dma(struct pl022 *pl022)
pages = (pl022->cur_transfer->len >> PAGE_SHIFT) + 1;
dev_dbg(&pl022->adev->dev, "using %d pages for transfer\n", pages);
- ret = sg_alloc_table(&pl022->sgt_rx, pages, GFP_KERNEL);
+ ret = sg_alloc_table(&pl022->sgt_rx, pages, GFP_ATOMIC);
if (ret)
goto err_alloc_rx_sg;
- ret = sg_alloc_table(&pl022->sgt_tx, pages, GFP_KERNEL);
+ ret = sg_alloc_table(&pl022->sgt_tx, pages, GFP_ATOMIC);
if (ret)
goto err_alloc_tx_sg;