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D55463.id172526.diff
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D55463.id172526.diff
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diff --git a/lib/libc/db/mpool/mpool.c b/lib/libc/db/mpool/mpool.c
--- a/lib/libc/db/mpool/mpool.c
+++ b/lib/libc/db/mpool/mpool.c
@@ -214,10 +214,14 @@
/* Read in the contents. */
off = mp->pagesize * pgno;
if ((nr = pread(mp->fd, bp->page, mp->pagesize, off)) != (ssize_t)mp->pagesize) {
+ int serrno;
+
switch (nr) {
case -1:
/* errno is set for us by pread(). */
+ serrno = errno;
free(bp);
+ errno = serrno;
mp->curcache--;
return (NULL);
case 0:
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D55463.id172526.diff (489 B)
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D55463: mpool/mpool_get.c: Avoid clobbering 'errno' when handling 'pread' errors
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