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lbutils, rand: err on zero return (fatal)

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Signed-off-by: Leah Rowe <leah@libreboot.org>
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Leah Rowe
2026-03-25 19:51:46 +00:00
parent bce1099509
commit 34f26319d7
1 changed files with 3 additions and 0 deletions
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util/libreboot-utils/lib/rand.c
+3
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@@ -70,6 +70,9 @@ retry_rand:
goto err; /* possibly unsupported by kernel */ goto err; /* possibly unsupported by kernel */
} }
if (rc == 0)
goto err; /* prevent infinite loop on fatal err */
if ((off += (size_t)rc) < n) if ((off += (size_t)rc) < n)
goto retry_rand; goto retry_rand;