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staging: ccree: fix memory leaks in cc_ivgen_init

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The current error exit path in function cc_ivgen_init via label
'out' free's resources from the drvdata->ivgen_handle context.
However, drvdata->ivgen_handle has not been assigned to the
context ivgen_ctx at this point, so the resources are not freed.
Fix this by setting drvdata->ivgen_handle to ivgen_ctx as early
as possible so that the clean up error exit return path can free
the resources.

Detected by CoveritScan, CID#1463795 ("Resource leak")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King 2018-01-12 16:10:18 +00:00 • committed by Greg Kroah-Hartman
commit bd12b21ec3
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/ccree/cc_ivgen.c
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@ -178,6 +178,8 @@ int cc_ivgen_init(struct cc_drvdata *drvdata)
if (!ivgen_ctx)
return -ENOMEM;
drvdata->ivgen_handle = ivgen_ctx;
/* Allocate pool's header for initial enc. key/IV */
ivgen_ctx->pool_meta = dma_alloc_coherent(device, CC_IVPOOL_META_SIZE,
&ivgen_ctx->pool_meta_dma,
@ -196,8 +198,6 @@ int cc_ivgen_init(struct cc_drvdata *drvdata)
goto out;
}
drvdata->ivgen_handle = ivgen_ctx;
return cc_init_iv_sram(drvdata);
out: