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authorRichard Henderson <richard.henderson@linaro.org>2019-03-13 20:47:32 -0700
committerRichard Henderson <richard.henderson@linaro.org>2019-05-22 12:38:54 -0400
commit25fb26e4f4b7cd50b9a7314400a2f800a4082b71 (patch)
tree294e9e3735a2f0a34f05b9ce877ad6ae3e2432f2 /crypto/random-gcrypt.c
parent14a356f47560c8275b8e04fbee484a617fc45f80 (diff)
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crypto: Do not fail for EINTR during qcrypto_random_bytes
We can always get EINTR for read; /dev/urandom is no exception.

Rearrange the order of tests for likelihood; allow degenerate buflen==0
case to perform a no-op zero-length read.  This means that the normal
success path is a straight line with a single test for success.

Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'crypto/random-gcrypt.c')
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