From: Jens Axboe <axboe@suse.de>
Date: Wed, 5 Oct 2005 07:53:31 +0000 (+0200)
Subject: [PATCH] verify_blkparse: correct sscanf return
X-Git-Tag: blktrace-0.99~45
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=b99d16379d8dfde1986ff1b882460ca0a80bbd87;p=blktrace.git

[PATCH] verify_blkparse: correct sscanf return
---

diff --git a/verify_blkparse.c b/verify_blkparse.c
index 4385bc7..d8b854d 100644
--- a/verify_blkparse.c
+++ b/verify_blkparse.c
@@ -24,7 +24,7 @@ int main(int argc, char *argv[])
 	last_time = 0;
 	last_seq = alias = nr = 0;
 	while ((p = fgets(line, sizeof(line), f)) != NULL) {
-		if (!sscanf(p, "%3d,%3d %2d %8d %lf", &major, &minor, &cpu, &seq, &this_time))
+		if (sscanf(p, "%3d,%3d %2d %8d %lf", &major, &minor, &cpu, &seq, &this_time) == -1)
 			break;
 
 		if (this_time < last_time) {
@@ -33,8 +33,10 @@ int main(int argc, char *argv[])
 		} else
 			last_time = this_time;
 
-		if (last_seq == seq)
+		if (last_seq == seq) {
+			fprintf(stdout, "alias on sequence %u\n", seq);
 			alias++;
+		}
 
 		last_seq = seq;
 	}