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authorNicholas Mc Guire <der.herr@hofr.at>2015-01-08 15:16:35 +0100
committerVinod Koul <vinod.koul@intel.com>2015-02-04 22:54:22 -0800
commit12385f458a27fe46da31483ed9f9ec5e9da575e7 (patch)
tree5506b1e73ec7b221198f159cacf6b6b04663f88b /drivers/dma/ioat
parentdmaengine: dw: define DW_DMA_MAX_NR_MASTERS (diff)
downloadlinux-dev-12385f458a27fe46da31483ed9f9ec5e9da575e7.tar.xz
linux-dev-12385f458a27fe46da31483ed9f9ec5e9da575e7.zip
ioat: fail self-test if wait_for_completion times out
wait_for_completion_timeout reaching timeout was being ignored, fail the self-test if timeout condition occurs. v2: fixup of coding style issues. Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at> Acked-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/ioat')
-rw-r--r--drivers/dma/ioat/dma_v3.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 61510abfabb7..77a6dcf25b98 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -1316,7 +1316,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test xor timed out\n");
err = -ENODEV;
goto dma_unmap;
@@ -1382,7 +1383,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test validate timed out\n");
err = -ENODEV;
goto dma_unmap;
@@ -1434,7 +1436,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test 2nd validate timed out\n");
err = -ENODEV;
goto dma_unmap;