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refs.c: fix fread error handling

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fread returns the number of items read, with no special error return.

Commit 98f85ff (reflog: add for_each_reflog_ent_reverse() API -
2013-03-08) introduced a call to fread which checks for an error with
"nread < 0" which is tautological since nread is unsigned.  The correct
check in this case (which tries to read a single item) is "nread != 1".

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
John Keeping 2013-03-23 17:16:46 +00:00 committed by Junio C Hamano
parent 98f85ff4b6
commit e4ca819abf
1 changed files with 1 additions and 1 deletions
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2
refs.c
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@ -2357,7 +2357,7 @@ int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void
return error("cannot seek back reflog for %s: %s",
refname, strerror(errno));
nread = fread(buf, cnt, 1, logfp);
if (nread < 0)
if (nread != 1)
return error("cannot read %d bytes from reflog for %s: %s",
cnt, refname, strerror(errno));
pos -= cnt;