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Fix kernel leaking ESPIPE in non-error cases.

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This commit is contained in:
Jonas 'Sortie' Termansen 2014-09-23 22:55:13 +02:00
parent 933720e0b0
commit 73dc4a0feb
1 changed files with 2 additions and 0 deletions
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2
kernel/descriptor.cpp
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@ -149,9 +149,11 @@ bool Descriptor::IsSeekable()
if ( !checked_seekable ) if ( !checked_seekable )
{ {
// TODO: Is this enough? Check that errno happens to be ESPIPE? // TODO: Is this enough? Check that errno happens to be ESPIPE?
int saved_errno = errno;
ioctx_t ctx; SetupKernelIOCtx(&ctx); ioctx_t ctx; SetupKernelIOCtx(&ctx);
seekable = 0 <= vnode->lseek(&ctx, SEEK_SET, 0) || S_ISDIR(vnode->type); seekable = 0 <= vnode->lseek(&ctx, SEEK_SET, 0) || S_ISDIR(vnode->type);
checked_seekable = true; checked_seekable = true;
errno = saved_errno;
} }
return seekable; return seekable;
} }