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authorFabio Estevam <fabio.estevam@freescale.com>2013-09-22 21:42:27 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2013-09-24 00:02:25 +0400
commit48e6dc1b2a1ad8186d48968d5018912bdacac744 (patch)
tree952bc225ac6f5fa526a37dac87a3792ce041d2a4 /drivers/crypto
parent0ff647551b4282eee90a6d944c9fccde07845db4 (diff)
downloadlinux-48e6dc1b2a1ad8186d48968d5018912bdacac744.tar.xz
crypto: dcp - Fix the path for releasing the resources
tasklet_kill() is not being called in probe and the remove function releases the resources in the wrong order. Fix these issues. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/dcp.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c
index 93ab753d610d..7b77c8457854 100644
--- a/drivers/crypto/dcp.c
+++ b/drivers/crypto/dcp.c
@@ -842,6 +842,8 @@ err_unregister:
for (j = 0; j < i; j++)
crypto_unregister_alg(&algs[j]);
err_free_key_iv:
+ tasklet_kill(&dev->done_task);
+ tasklet_kill(&dev->queue_task);
dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
dev->payload_base_dma);
err_free_hw_packet:
@@ -858,20 +860,20 @@ static int dcp_remove(struct platform_device *pdev)
int j;
dev = platform_get_drvdata(pdev);
- dma_free_coherent(&pdev->dev,
- DCP_MAX_PKG * sizeof(struct dcp_hw_packet),
- dev->hw_pkg[0], dev->hw_phys_pkg);
+ misc_deregister(&dev->dcp_bootstream_misc);
- dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
- dev->payload_base_dma);
+ for (j = 0; j < ARRAY_SIZE(algs); j++)
+ crypto_unregister_alg(&algs[j]);
tasklet_kill(&dev->done_task);
tasklet_kill(&dev->queue_task);
- for (j = 0; j < ARRAY_SIZE(algs); j++)
- crypto_unregister_alg(&algs[j]);
+ dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
+ dev->payload_base_dma);
- misc_deregister(&dev->dcp_bootstream_misc);
+ dma_free_coherent(&pdev->dev,
+ DCP_MAX_PKG * sizeof(struct dcp_hw_packet),
+ dev->hw_pkg[0], dev->hw_phys_pkg);
return 0;
}