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authorGary R Hook <gary.hook@amd.com>2017-12-15 13:55:59 -0600
committerHerbert Xu <herbert@gondor.apana.org.au>2017-12-22 20:03:36 +1100
commit0e4b52942b1c76f89e0dcb829f72e123d0678f54 (patch)
treee7d0865a5ff09837efbba4ca00596312c1277166 /crypto/tcrypt.c
parent871df319bd48acb4ce48b8985136c8ba40af3a02 (diff)
hwrng: core - Clean up RNG list when last hwrng is unregistered
Commit 142a27f0a731 added support for a "best" RNG, and in doing so introduced a hang from rmmod/modprobe -r when the last RNG on the list was unloaded. When the hwrng list is depleted, return the global variables to their original state and decrement all references to the object. Fixes: 142a27f0a731 ("hwrng: core - Reset user selected rng by writing "" to rng_current") Signed-off-by: Gary R Hook <gary.hook@amd.com> Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/tcrypt.c')
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