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vcs-svn: simplify cleanup in apply_one_window

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Currently the cleanup code looks like this:

	free resources
	return 0;
 error_out:
	free resources
	return -1;

Avoid duplicating the "free resources" part by keeping the return
value in a variable and sharing code between the success and
exceptional case:

	ret = 0;
 out:
	free resources
	return ret;

Noticed in the svn-dump-fast-export project, where using the error()
macro in void context produces a warning.

Signed-off-by: David Barr <davidbarr@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
This commit is contained in:
David Barr 2012-06-01 00:41:26 +10:00 committed by Jonathan Nieder
parent 4a5de8dd79
commit 4a1613194a
1 changed files with 4 additions and 4 deletions
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8
vcs-svn/svndiff.c
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@ -258,6 +258,7 @@ static int apply_window_in_core(struct window *ctx)
static int apply_one_window(struct line_buffer *delta, off_t *delta_len,
struct sliding_view *preimage, FILE *out)
{
int rv = -1;
struct window ctx = WINDOW_INIT(preimage);
size_t out_len;
size_t instructions_len;
@ -275,16 +276,15 @@ static int apply_one_window(struct line_buffer *delta, off_t *delta_len,
if (apply_window_in_core(&ctx))
goto error_out;
if (ctx.out.len != out_len) {
error("invalid delta: incorrect postimage length");
rv = error("invalid delta: incorrect postimage length");
goto error_out;
}
if (write_strbuf(&ctx.out, out))
goto error_out;
window_release(&ctx);
return 0;
rv = 0;
error_out:
window_release(&ctx);
return -1;
return rv;
}
int svndiff0_apply(struct line_buffer *delta, off_t delta_len,