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Check the return value of tsleep() in snpread(). This may be
important, since our sleep is interruptable (PCATCH flag). PR: 30985 Discovered by: Vladimir Jakovenko <vovik@lucky.net> Submitted by: Valentin Nechayev <netch@segfault.kiev.ua>
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=86861
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@ -256,7 +256,10 @@ snpread(dev, uio, flag)
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if (flag & IO_NDELAY)
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return (EWOULDBLOCK);
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snp->snp_flags |= SNOOP_RWAIT;
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tsleep((caddr_t)snp, (PZERO + 1) | PCATCH, "snprd", 0);
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error = tsleep((caddr_t)snp, (PZERO + 1) | PCATCH,
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"snprd", 0);
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if (error != 0)
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return (error);
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}
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} while (snp->snp_len == 0);
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