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crypto: caam - Fix error handling in caam_rng_init()

Browse source 
In the error paths we should free the resources that were
previously acquired, so fix it accordingly.

Signed-off-by: Fabio Estevam <[email protected]>
Reviewed-by: Horia Geant? <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Fabio Estevam 2015-08-12 11:48:42 -03:00 • committed by Herbert Xu
commit ac8ad30777
1 changed files with 11 additions and 3 deletions
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14
drivers/crypto/caam/caamrng.c
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@ -352,14 +352,22 @@ static int __init caam_rng_init(void)
return PTR_ERR(dev);
}
rng_ctx = kmalloc(sizeof(struct caam_rng_ctx), GFP_DMA);
if (!rng_ctx)
return -ENOMEM;
if (!rng_ctx) {
err = -ENOMEM;
goto free_caam_alloc;
}
err = caam_init_rng(rng_ctx, dev);
if (err)
return err;
goto free_rng_ctx;
dev_info(dev, "registering rng-caam\n");
return hwrng_register(&caam_rng);
free_rng_ctx:
kfree(rng_ctx);
free_caam_alloc:
caam_jr_free(dev);
return err;
}
module_init(caam_rng_init);